In the nearly four decades since the launch of Reform and Opening (gaige kaifang 改革开放), China's economic rise on the global stage has been remarkable, yet the environmental price of this economic boom is proving to be exorbitant. According to the Ministry of Environmental Protection and the Ministry of Land Resources, about 60 per cent of China's groundwater, and one-third of its surface water, has been rated unfit for human use. A nationwide investigative report on soil pollution, released in 2014, found that nearly 20 per cent of all cultivated land has been seriously contaminated, and that desertification and soil erosion also threaten China's long-term future.Footnote 1 But perhaps no single environmental challenge has garnered as much domestic and international attention as widespread public concern about smog (wumai 雾霾).
Although a variety of terms are commonly used to describe air pollution in China, depending on seasonality, climate and variation across spatial scales,Footnote 2 for the sake of clarity and consistency this article adopts the widely used term “smog” to refer to the phenomenon. Experts generally recognize the amount of effort the Chinese government has put into developing and improving legal frameworks for environmental protection, although implementation and enforcement often remain weak.Footnote 3 In 2013, China's State Council pledged to tackle smog by releasing the National Action Plan on Air Pollution (Daqi wuran fangzhi xingdong jihua 大气污染防治行动计划), which aims to reduce the concentration of respirable particulate matter by at least 10 per cent in prefecture-level cities by 2017 in comparison with 2012 levels, and to reduce the concentration of respirable particulate matter in Jingjinji (Jing Jin Ji 京津冀) (by 25 per cent),Footnote 4 the Yangtze River Delta (Changjiang sanjiaozhou 长江三角洲) (by 20 per cent), and the Pearl River Delta (Zhujiang sanjiaozhou 珠江三角洲) (by 15 per cent). Public perceptions of air pollution have become a prominent topic in policy circles and in the media, as evidenced by the documentary film “Under the Dome” (Qiongding zhixia 穹顶之下), released by journalist Chai Jing in 2015 and viewed by millions of people before it was blocked by government censors.
Tangshan, located in Hebei province, is routinely ranked as one of the most polluted cities in China. As one of the major cities in the so-called Jingjinji region, the city has reduced levels of particulate matter by 12.2 per cent in recent years; however, the Chinese media has recently discovered that several industrial enterprises in Tangshan have been fabricating their emissions data in order to meet standards, calling into question the reliability of pollution measures throughout the region.Footnote 5, Footnote 6 The rising demand for electricity generation and the inherent conflict between pursuing GDP growth and tackling the smog problem are two fundamental barriers cited by local Environmental Protection Bureau officials that hinder their ability to implement the National Action Plan on Air Pollution.Footnote 7 Meanwhile, in nearby Beijing, this decisive new plan so far has not proven very effective; Beijing residents have experienced several “red alerts,” indicating air pollution so severe that it can cause acute health problems.
While official statistics and government pronouncements have been widely circulated and discussed via social media, the perceptions and reactions of people who deal with smog on a daily basis remain poorly understood. How do people in urban China perceive the environmental crisis they face? How do they understand environmental pollution in the context of their daily lives? How do they balance the relationship between environmental quality and overall quality of life? This article aims to examine how middle-class urban residents perceive air pollution in the context of various aspects of quality of life in Tangshan.
Our analysis draws upon data collected via qualitative interviews and a standardized, quantitative survey questionnaire with 341 residents undertaken in August and September of 2014 in Tangshan, Hebei province. We focus in particular on the complex tradeoffs between environmental quality and other aspects of quality of life, such as personal health, children's health, jobs and income, children's education, and family harmony. These themes emerged from qualitative interviews with study participants as the most important aspects of quality of life for our study sample. We examine quantitatively how study participants ranked the importance of these themes relative to one another, and we interpret the results in the context of qualitative data and narratives from study participants about their everyday experiences with air pollution. We also contextualize these findings by drawing on several key interviews with officials within the municipal Environmental Protection Bureau of Tangshan.
Economic Development and Environmental Pollution in Tangshan
Tangshan 唐山 is a heavily industrialized prefecture-level city in northeastern China's Hebei province. It is located on the North China Plain along the Bohai coast, in the central section of what is often called the Bohai Bay Economic RimFootnote 8 (Huan Bohai jingji quan 环渤海经济圈), and borders Beijing and Tianjin to the west. In many ways, Tangshan can be seen as a perfect illustration of China's dilemma regarding economic growth and environmental degradation, especially air pollution. As a heavy industry-oriented city, Tangshan has long been known for its host of large iron and steel plants, coal mines, and the nation's first and largest cement factory. According to national and regional reports, the GDP of Tangshan surpassed 622.53 billion yuan in 2015, ranking the city first in Hebei province and 25th in all of mainland China. The city's GDP per capita is 78,525 yuan (approximately US$12,608), and Tangshan has led Hebei province in GDP per capita for over a decade.Footnote 9
But these economic advancements have come with severe environmental costs. A common saying among the general public and the mass media holds that “If you want to see China's smog, look to Hebei; if you want to see Hebei's smog, look to Tangshan” (Zhongguo wumai kan Hebei, Hebei wumai kan Tangshan 中国雾霾看河北, 河北雾霾看唐山). While major pollution remediation efforts were made in Beijing leading up to the 2008 Olympics, Hebei province experienced further deterioration of its air quality, since many polluting industries were relocated there in order to improve air quality in the host city. According to a 2015 report from China Daily, six Hebei cities, including Tangshan, are routinely listed in the nation's top ten in terms of smog.Footnote 10 Real-time data reports on China's air quality index also routinely show Tangshan to be one of the most polluted cities in the nation.Footnote 11
Like most heavily industrialized cities in China, Tangshan has undergone a dramatic transformation in its economy and environment during the past few decades, following a strategy of “pollute first, control later” (xian wuran, hou zhili 先污染, 后治理) or “develop first, clean up later” (xian fazhan, hou zhili 先发展, 后治理), a pattern familiar to earlier industrialized regions in Europe and North America.Footnote 12 Top government leaders have only recently begun to acknowledge the dire environmental consequences of this strategy. Despite the momentum brought by new policies such as the National Action Plan on Air Pollution, Tangshan's Environmental Protection Bureau officials acknowledge the agency's overall lack of capacity for effective enforcement of regulations.Footnote 13
In many ways, Tangshan's environmental problems are a microcosm of the larger environmental crisis in China stemming from rapid industrial development. China is the largest producer and consumer of coal in the world and is the largest consumer of coal-derived electricity, generating an estimated 73 per cent of domestic electricity production from coal as of 2014.Footnote 14 China's dependence on coal is cause for concern on a global scale. Due in large part to the emissions caused by burning coal, China is now the number one producer of CO2 (carbon dioxide), responsible for a full quarter of the world's CO2 output.Footnote 15 Hailed as the “Cradle of China's Modern Industry,” Tangshan was the home of China's first modern coal pit and the site of China's first cement works.Footnote 16 Today, iron and steel continue to be the cornerstones of the city's economy, including two main companies: Tangshan Iron and Steel (Tangshan gangtie youxian zeren gongsi 唐山钢铁有限责任公司) and Shoudu Iron and Steel (Shoudu gangtie gongsi 首都钢铁公司). The coal and petroleum industries are also major economic players in the city and the region.
Many residents of Tangshan feel they are on the “front lines” of China's severe air pollution problems. Since 2012 the Ministry of Environmental Protection (MEP) has conducted a national programme for monitoring PM2.5, ultra-fine particles that have been correlated with cardiovascular illnesses and other health problems in epidemiological studies. Monitoring data routinely shows PM2.5 levels in Tangshan to exceed MEP and World Health Organization standards. On a typical smoggy day, the sun is blocked by a thick layer of smog hovering in the sky. Street lights often turn on automatically in response to the dim light, even in the daytime; drivers turn on their vehicles’ fog lights in order to be seen; and residents wear masks to try to somewhat protect themselves from the polluted air. Simply put, smog has woven itself deeply into people's daily lives, influencing school, work, entertainment, and all aspects of family, community and society.
Public Perceptions of Air Pollution
Understanding public perceptions of air pollution has important implications for developing new technologies and policies to manage pollution.Footnote 17 Research on public perceptions of air pollution is fairly advanced in developed regions such as North America, Japan, and Europe, with advancements being made more recently in developing countries such as China and India.Footnote 18 Much of the cross-national research on public perceptions of environmental quality comes from the “post-materialist” perspective, which assumes that people in developing nations or poor communities place little emphasis on environmental protection until their basic material needs have been met. However, a growing body of research demonstrates that environmental problems are salient and important issues in both wealthy and poor nations, and that residents of poor nations express as much concern about environmental quality as do those living in wealthy nations.Footnote 19 This is particularly true for people who, because of their vulnerable socio-economic position, experience the effects of pollution on a daily basis. While air pollution's distribution may be regional or even global in scope, people experience it in profoundly local and personal ways.Footnote 20
In recent years, researchers from a variety of disciplines have sought to understand public perceptions of air pollution in both developed and developing countries.Footnote 21 A common goal of these researchers is to understand the role of everyday experience in how people come to know about air pollution through the course of their everyday lives.Footnote 22 In China specifically, a growing body of literature on public perceptions of pollution consistently shows that air pollution is a key concern for members of the emerging middle class, and that these concerns have the potential to drive more stringent policy controls at various levels of government.Footnote 23 Moreover, government officials in major urban areas view pollution control as a high priority, but they are often forced to balance it against other key imperatives such as economic growth.Footnote 24
Opinion polls routinely show growing levels of environmental consciousness among the Chinese public, especially among the more educated and wealthier urban residents.Footnote 25 For example, a survey conducted by the Pew Research Center in 2008 asked Chinese people to rate the seriousness of air pollution on a scale ranging from “not a problem at all” to a “very big problem”; 31 per cent rated it a “very big problem.” By 2013, when the same survey was repeated, 47 per cent of respondents cited air pollution as a “very big problem.”
To a great extent, public perceptions of air pollution are bound up with people's daily experiences. As Hansen and Liu observe in this issue based on fieldwork in Zhejiang province, people's perceptions of air quality are entwined in their ideas about economic development, their aspirations for a higher quality of life, and even prominent national discourses such as “ecological civilization.”Footnote 26 Moreover, people's experiences are often marked by anxiety in the face of uncertainty about the link between pollution exposure and the health problems they may face.Footnote 27 The choices people make about how to cope with pollution on a daily basis are also constrained by personal, social and demographic factors such as age, income, class, gender and educational background.
Research Methods
Data collection methods for this study included semi-structured interviews and a standardized, quantitative survey instrument, supported by site visits and observation in Tangshan. We used an intercept point survey approach to recruit middle-class, urban study participants in public places such as shopping centres. The intercept point sampling method is a non-probability sample (i.e. non-random) and therefore does not allow us to make generalizations about the Chinese public at large. However, it is a convenient and cost-effective way to collect large amounts of data and, if carefully conducted, can yield a study sample similar to a probability sample.Footnote 28 Our results are thus meant to be viewed as a close examination of urban residents in Tangshan, rather than a nationally representative picture of China as a whole.
Data collection proceeded in two phases, and was carried out by the first author and four research assistants during August and September 2014. Phase One consisted of 30 semi-structured interviews (14 women and 16 men, ranging in age from 20 to 68). As part of the interview, study participants were asked to complete a free-listing exerciseFootnote 29 in response to the questions, “What does quality of life mean to you? In your view, what are the most important terms and concepts related to quality of life?” We coded the results of the free-listing exercise into a series of themes, which can be seen as “tags or labels for assigning units of meaning to the descriptive or inferential information compiled during a study.”Footnote 30 We identified six major themes related to quality of life from the perspective of study participants: children's health; personal health; jobs and income; family harmony; children's education; and environmental quality.
Phase Two of the study, which employed a standardized survey questionnaire, was designed to examine the relative importance (priority) of these different themes from the perspective of study participants. The survey questionnaire included modules on personal background and demographics, knowledge and reactions to smog, and ranking decisions about the six themes related to quality of life. The first author and research assistants administered the questionnaire to 477 Tangshan residents using the intercept point sampling method described above. A total of 341 valid surveys containing complete ranking data were returned, resulting in a 71 per cent response rate. In terms of basic demographic characteristics, our sample was 45 per cent male and 55 per cent female, with an average age in the late thirties, some educational attainment beyond secondary school, and a median household monthly income just under 3,000 yuan, which is similar to the median income for Tangshan as a whole. This mixed methods approach allows us to better understand the conflict, complexity, and tradeoffs between air quality and various other aspects of quality of life for Tangshan residents.
Ranking Various Aspects of Quality of Life
A common approach for measuring public perceptions of pollution via quantitative surveys is to use ordinal scale questions (e.g. Likert scales). We collected this type of data by asking study participants to rate each theme related to quality of life by its importance, from 1 (very important) to 5 (not important). However, this approach yielded limited results, because study participants routinely rated all themes high in importance; as a result, all themes had mean ratings from 1.29 to 1.78. We opted instead to ask study participants to rank (prioritize) the six themes relative to one another by ordering them from 1 (highest priority) to 6 (lowest priority), encouraging study participants to weigh each theme by perceived importance. Table 1 presents the results of ranking decisions for our full study sample, listed from most important to least important.
Table 1: Mean Ranking of Themes Related to Quality of Life
Note: Themes are ranked from 1 (most important) to 6 (least important).
In order to examine whether study participants’ rankings of the six themes were statistically different from one another, we conducted a Friedman test, which is a non-parametric procedure designed for the analysis of ranked data. We also conducted a Wilcoxon signed-rank test as a post-hoc analysis (with Bonferroni correction to control for multiple comparisons) to examine pairwise differences between all themes. As Table 2 shows, our study sample ranked the six themes related to quality of life in very different ways (χ2(2) = 573.85, p =.000). All pairwise differences are also statistically significant, likely due to the fairly large sample size.
Table 2: Statistical Comparison of Theme Rankings Related to Quality of Life
Notes:
b. Based on positive ranks.
c. Based on negative ranks.
As the results of the quantitative survey demonstrate, themes related to health, including children's health and personal health, were consistently seen as the most important aspects of quality of life. Environmental quality was consistently ranked as a fairly low priority relative to the other themes. Somewhat surprisingly, the theme of jobs and income showed the lowest priority ranking.
Narratives of Air Pollution
Results from qualitative interviews help provide context for interpreting the survey findings. These narratives reveal several interesting trade-offs between the various themes constituting quality of life in Tangshan. In what follows, we briefly describe these narratives by focusing on the relationship between economic well-being and perceptions of pollution, by describing how residents’ perceptions of various themes related to quality of life were intertwined with one another, and by characterizing the role that gender plays in perceptions of pollution.
The insufficiency of economic well-being
Many residents expressed the view that economic well-being was a necessary precondition for enjoying a high quality of life, but that, on its own, it was insufficient. One study participant, Mr Guo, illustrated this point by noting:
I don't make a lot of money, but it's enough for (my) household. Tangshan is not an expensive city to live in, compared to Beijing or Tianjin; daily expenses here are much lower, and we are living a much better life now. You know, when I was a child I never had enough food, not to mention other things. But the environment was good. We had blue skies and usually at night you could see the Milky Way. I haven't seen the stars for years, and I think it's solely because the air quality is really bad now. It's always grey, even at night; fortunately, the moon is still visible. They (the government) should stop bringing in more polluting industries to Tangshan and start cleaning the air for the sake of people's health, but I don't think they care. They say they care, but where is the action?Footnote 31
Mr Guo's comments underscore a common sense of frustration among urban residents towards government regulators. Chinese victims of pollution continue to face formidable institutional barriers to gaining redress, including the cost of litigation, lack of impartiality in the judicial system, corruption, lack of legal and scientific knowledge, and general difficulty accessing the court system. Meanwhile, polluting companies often have sufficient economic resources and political power to shed their responsibility and avoid enforcement due to their close connection to the local government.Footnote 32 As a result, residents are left with the sense that, despite having fulfilled their economic ambitions, certain aspects of quality of life elude them. For example, Mr Zhao, an employee of a private company who was in his fifties and supporting a daughter in college, noted that:
We have all we've ever wanted now: a house, money, a car, etc. But the environment has become unfit for us to live in. It used to be bad, but it's only getting worse and worse. Tangshan is wealthy enough; why don't they (the government) stop bringing more polluting industries? [Referring to the relocation of the Shougang steel plant from Beijing to Tangshan.] I hope my daughter can stay in Hainan (where she went for college) after graduation and get a job there. That way, we can at least go there during winter to breathe some clear air.
Most study participants expressed the view that their incomes had increased significantly in recent years and that, as a result, they felt as though they were solidly in the middle class. While there is no simple empirical standard or definition for middle class, according to the Chinese Statistical Bureau the middle-income group consists of households whose income falls between the third and fourth quintile nationally, which was a range between US$1,545 and US$2,917 in disposable income as of 2008.Footnote 33 More recent analyses of China's middle class have suggested that about 14 per cent of the population belongs to the middle class, and that this category is increasing rapidly along with China's accelerated economic growth.Footnote 34
Many of our study participants expressed in interviews that income was not a primary means of determining whether one's family had reached middle-class status. Instead, many people used the term xiaokang 小康, or being “well-off,” to describe their aspirations. This term, which denotes a moderate level of material comfort, has been in common circulation in China since the Jiang Zemin era, and has also been espoused by President Xi Jinping as a fundamental policy goal. However, material comfort is increasingly being undermined by a polluted environment. One study participant, Mr Qi, remarked:
I think we've already become a xiaokang society (xiaokang shehui 小康社会). It's not necessary to make money without thinking about anything else (pin le ming de zhengqian 拼了命的挣钱). Life has improved significantly during the past few decades; every household has at least one car, and, within some families, each family member drives their own car. Tangshan is famous for being wealthy, but also notorious for being heavily polluted. If I had to choose, I would prefer to have a better living environment. Who needs that much money anyway?
Linkages between pollution and quality of life
It became clear during qualitative interviews that most residents view quality of life in a fairly holistic way, and that the various themes constituting quality of life cannot be easily separated.Footnote 35 Many participants expressed the view that health (both for themselves and for their children) was fundamentally tied to environmental quality and other aspects of quality of life, influencing their daily activities in a profound way. One study participant, Ms Wang, expressed this view as follows:
Physical health is so important to both adults and children. It is pointless to earn lots of money if you don't have the good fortune to spend it (you qian mei ming hua 有钱没命花). Moreover, the economy is good enough and there are plenty of opportunities to make money, but the air quality is so bad that I don't even want to go out. My uncle just died of lung cancer a couple months ago; he was only in his early fifties. It's getting more common than ever for people to have lung cancer here, and they die at a young age. I'd rather have a healthier living environment than own a mountain of gold.Footnote 36
The longing for a better and healthier living environment was consistently cited during qualitative interviews, and the health risks related to smog were often discussed in uncertain and speculative terms. Across China, the annual death toll from air pollution, primarily from industrial and household emissions, is estimated to be 300,000 people.Footnote 37 In 2013, people living in northern China were informed by a team of American, Chinese and Israeli researchers that they could expect to live much shorter lives – 5.5 years shorter – than their countrymen to the south, due to heavier dependency on coal-fired power plants and much more severe levels of air pollution.Footnote 38 Around the same time, a World Health Organization (WHO) report found that 1.2 million Chinese people died prematurely in 2010 alone due to the country's polluted air.Footnote 39 Although the precise link between smog and respiratory illness has not yet been established through epidemiological studies in Tangshan, the phenomenon has definitely aroused anxiety among Tangshan's citizens.
For example, Ms Liu, a banker in her thirties, had recently returned to her hometown of Tangshan to take up employment after obtaining her Master's degree, convinced that the high salary of her new job would make the transition worthwhile. She soon regretted the decision to return, citing the gloomy winter smog as the reason. Ms. Liu also expressed a sense of anxiety and helplessness regarding air pollution. She drove her own car regularly, and while she was mindful of her own contribution to air pollution, she saw little hope for a solution to the problem since so many other city residents also commuted by car and heavy industry remained an important part of the local economy.
The role of gender in perceptions of air pollution
Another important trend that emerged from analysis of the in-depth interviews in this study is that gender appears to play a key role in the way participants perceive and experience air pollution. This is particularly true for mothers of young children who worry about the effects of pollution on their children's health. One study participant, Ms Ma, discussed her concerns during an interview:
What I am most concerned about is my daughter. She's only two years old. I weigh her health over anything else in my life. I grew up here, and I have four elders (her parents and her husbands’ parents) to take care of; otherwise I would buy a house somewhere cleaner, or at least somewhere with better air quality. Kids are more vulnerable than us, because we can get used to this toxic environment. There's not much I can do to protect her from pollution, other than staying inside as much as possible. I bought an air purifier, too, but I don't know if it works in the long run.
In her comments, Ms. Ma expressed a general concern about the lack of information regarding how to safeguard one's family from the health effects of air pollution. This sense of uncertainty, which was shared by many study participants, can heighten the anxiety about pollution exposure. For example, Ms Tian, a new mother with a two-year-old, noted that:
I used to like life here (Tangshan), because we live so close to Beijing and everything is convenient, yet we still managed to live a good life because things are not as expensive as in Beijing. However, since I have had my son, I am actually planning on moving somewhere else, somewhere cleaner. My son was diagnosed with asthma not long after he was born. Neither my husband's family nor my family have a history of asthma, so I consulted a few doctors and was told that it's highly possible that my son's asthma is caused by environmental factors. I think they meant the air pollution here. Look at how bad it is (pointing her finger into the haze). As adult, I think I even have problems breathing this air, so how can my son manage to survive this? I don't want him to get worse. We need to move. I don't think I can wait until it (air quality) gets cleaned up, and I don't see the government doing anything about it.Footnote 40
Studies linking gender with perceptions of pollution have grown in number and prominence within the academic literature in recent years, and a recurring finding is that women are often more concerned than men about environmental quality in general.Footnote 41 Women's perceptions of pollution are often entwined with their concerns about family health and with concerns about how pollution damages their connection to place and community.Footnote 42 In China specifically, research has documented the concerns of women whose families are exposed to chronically high levels of pollution. In the absence of scientific information about how pollution may be linked to specific health outcomes, from respiratory illnesses to developmental problems in children, many mothers are left to speculate and worry amid what has been called “the ambiguity of harm.”Footnote 43
Discussion and Conclusions
Smog continues to pose a chronic problem in Tangshan, as in most major Chinese cities, due to both heavy industry and a dramatic increase in automobile traffic. Smog is also increasingly recognized as an acute public health problem throughout northern China, and the government has declared several high-profile “red alerts” in recent years. Residents in Tangshan and beyond are facing an ongoing battle with smog, an issue at the intersection of science, public policy and rising perceptions among urban residents about how air pollution affects their quality of life.
Using qualitative interviews and a standardized survey questionnaire, we have examined public perceptions of various themes that residents of Tangshan identified as important aspects of “quality of life” for the public, including personal health, children's health, family harmony, children's education, environmental quality, and jobs and income. Although study participants considered environmental quality an issue of lower priority than many themes, they consistently ranked it above economic concerns such as jobs and income.
Most importantly, Tangshan residents tended to have a holistic view of “quality of life,” seeing the connections across various themes. In the narratives of our study participants, key themes such as personal health and children's health were seen as fundamentally linked to environmental quality in complex and nuanced ways. When people remain indoors in order to avoid pollution exposure, or put on respiratory masks before going outdoors, or worry constantly about the health of their family members, it is clear that environmental quality influences all other aspects of everyday life. In this way, Tangshan's smog problem can be viewed as a crucial factor that limits general quality of life. This is in line with key findings from other studies in this special issue, which suggests that perceptions of pollution are shaped by a range of factors including economic status, increased media scrutiny of pollution events, and governmental discourses promoting the rise of an ecological civilization.Footnote 44
Our findings also resonate with recent research that has shown a link between environmental degradation and increased public concern and environmental awareness in contemporary China.Footnote 45 In some cases, public anxiety regarding the health threats posed by pollution has led to greater frequency of environmental protests.Footnote 46 However, pollution victims face a variety of challenges in gaining official recognition and redress, including the difficulty of showing a causal link between pollution exposure and specific damages, as well as the general difficulty of accessing the court system.Footnote 47 A next logical step in this research agenda is to attempt to understand whether increased environmental awareness actually leads to pro-environmental behaviours and support among the public for more aggressive environmental regulations. As a 2002 UN Development Programme report on the potential for sustainable development in China observed, public environmental awareness and concern are among the most important driving forces for environmental improvements worldwide, and a well-informed society, with outspoken public intellectuals, is often a necessary condition for successful environmental protection campaigns.Footnote 48
Public engagement in environmental governance is crucial, as traditional top-down pollution control approaches are increasingly proving inadequate in enforcing regulations. Public engagement is also a key component of China's Agenda 21 document, which explicitly champions a greater public role in environmental governance.Footnote 49 However, understanding public engagement within the unique political context of contemporary China, with its limited space for civil society and non-governmental organizations, can be challenging. According to the Ministry of Environmental Protection's incident investigation centre, anonymous tips about polluting industries and activities have risen steadily in recent years, and air pollution is the most common topic of concern.Footnote 50 Hebei province, where Tangshan is located, established a system in 2013 to reward residents who report environmental infractions, and this system undoubtedly contributes to the rising public awareness about pollution.Footnote 51 If true progress towards addressing China's severe air pollution crisis is to be made, the perceptions and attitudes of middle-class urban residents will undoubtedly need to be a key driving factor.
Acknowledgement
The Norwegian Research Council and the Centre for Advanced Study at the Norwegian Academy of Sciences provided logistical support for this article.
Biographical notes
Xiaoyue Li is a PhD candidate in anthropology at Oregon State University, USA.
Bryan Tilt is associate professor in anthropology at Oregon State University, USA.
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