Water spray geoengineering to clean air pollution for mitigating haze in China’s cities

Yu, Shaocai

doi:10.1007/s10311-013-0444-0

Cited by 52 publications

(17 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has also begun replacing old coal plants with cleaner and newer stations. For instance, water spray geoengineering has been used to mitigate haze in China’s cities [ 19 ], and a luminance reference model was used to monitor haze by image interpretation [ 20 , 21 ]. Furthermore, an odd-even day vehicle prohibition rule has occasionally been implemented during big events, e.g., APEC (Asia-Pacific Economic Cooperation) or the Olympic Games have even been announced during regional holidays.…”

Section: Discussionmentioning

confidence: 99%

The Haze Nightmare Following the Economic Boom in China: Dilemma and Tradeoffs

Sun

Wang

Wei

et al. 2016

IJERPH

View full text Add to dashboard Cite

This study aims to expand on a deeper understanding of the relationship between rapid economic development and ensuing air pollution in China. The database includes the gross domestic product (GDP), the value added of a secondary industry, the per capita GDP (PGDP), greenhouse gases emissions, and PM2.5 concentrations. The results indicate that China’s PGDP has continued to rise over the past decade, and the rate of PGDP slowed down from 1980 to 2004 (slope = 5672.81, R2 = 0.99, p < 0.001) but was significantly lower than that from the year 2004 to 2013 (slope = 46,911.08, R2 > 0.99, p < 0.001). Unfortunately, we found that total coal consumption, annual steel production, and SO2 emission had been continually growing as the overall economy expands at temporal scale, with the coefficient of determinations greater than 0.98 (p < 0.001). Considering the spatial pattern aspect, we also found a significant relationship between GDP and greenhouse gases. Meanwhile, severe air pollution has negatively impacted the environment and human health, particularly in some highlighted regions. The variation explained by both total SO2 emission and total smoke and dust emission were 33% (p < 0.001) and 24% (p < 0.01) for the rate of total pertussis at temporal scale, respectively. Furthermore, at the spatial scale, pulmonary tuberculosis rates and pertussis mainly occurred in area with serious air pollution (economically developed region). It can be summarized that the extensive mode of economic growth has brought a number of serious environment and human health problems. Thus, a new policy framework has been proposed to meet the goals of maintaining a healthy economy without harming natural environment, which may prove integral, especially when coupled with long-term national strategic development plans.

show abstract

Section: Discussionmentioning

confidence: 99%

The Haze Nightmare Following the Economic Boom in China: Dilemma and Tradeoffs

Sun

Wang

Wei

et al. 2016

IJERPH

View full text Add to dashboard Cite

show abstract

“…In addition, some scholars and decision-makers have proposed other meteorological means for reducing PM 2.5 concentrations. For instance, Yu (2014) suggested that water spraying from high buildings and water towers in urban areas was an efficient way to reduce PM 2.5 concentrations rapidly by simulating precipitation.…”

Section: Discussionmentioning

confidence: 99%

Understanding meteorological influences on PM<sub>2.5</sub> concentrations across China: a temporal and spatial perspective

et al. 2018

View full text Add to dashboard Cite

Abstract. With frequent air pollution episodes in China, growing research emphasis has been put on quantifying meteorological influences on PM 2.5 concentrations. However, these studies mainly focus on isolated cities, whilst meteorological influences on PM 2.5 concentrations at the national scale have not yet been examined comprehensively. This research employs the CCM (convergent cross-mapping) method to understand the influence of individual meteorological factors on local PM 2.5 concentrations in 188 monitoring cities across China. Results indicate that meteorological influences on PM 2.5 concentrations have notable seasonal and regional variations. For the heavily polluted North China region, when PM 2.5 concentrations are high, meteorological influences on PM 2.5 concentrations are strong. The dominant meteorological influence for PM 2.5 concentrations varies across locations and demonstrates regional similarities. For the most polluted winter, the dominant meteorological driver for local PM 2.5 concentrations is mainly the wind within the North China region, whilst precipitation is the dominant meteorological influence for most coastal regions. At the national scale, the influence of temperature, humidity and wind on PM 2.5 concentrations is much larger than that of other meteorological factors. Amongst eight factors, temperature exerts the strongest and most stable influence on national PM 2.5 concentrations in all seasons. Due to notable temporal and spatial differences in meteorological influences on local PM 2.5 concentrations, this research suggests pertinent environmental projects for air quality improvement should be designed accordingly for specific regions.

show abstract

“…Secondary aerosol formation not only depends on gaseous precursors from the local emissions but also can occur during the air mass transport (Yu et al, 2003;2004;2007a;2008;Yu 2014;Zhang 2008;Yuan et al, 2014). Meteorological conditions play a very important role in the accumulation of PM for the Yangtze River delta (YRD) .…”

Section: Backward Trajectory and Cluster Analysismentioning

confidence: 99%

A Heavy Haze Episode in Shanghai in December of 2013: Characteristics, Origins and Implications

Yan

Fan

et al. 2015

Aerosol Air Qual. Res.

Self Cite

View full text Add to dashboard Cite

As the largest Chinese city by population and the largest city proper by population in the world, Shanghai has frequently suffered the heavy haze in recent years. In this study, the observational data (PM 2.5 , PM 10 , O 3 , NO 2 , CO and SO 2 ) at the ten urban monitoring stations in Shanghai from November 25 to December 9, 2013, were used to analyze the haze pollution. The source contributions of PM 2.5 in Shanghai were identified by trajectory clustering and hybrid receptor models (potential source contribution function (PSCF) and concentration weighted trajectory (CWT)). The results showed that for the whole study period, the ranges of pollutant concentrations are 2. . It was found that PM 2.5 contributed more than 80% of PM 10 for the whole period except the relatively clean period in which only 45% of PM 10 is PM 2.5 . The model analyses show that clean air masses reaching at Shanghai were from the far away regions like Mongolia and Inner Mongolia with the high mean wind speed (fast air masses). On the other hand, the heavy haze air masses were mainly from the nearby industrialized and urbanized provinces with industrial cities. It was found that the formation of the extremely heavy haze from December 5 to 7 in Shanghai was mainly because of the air pollution transported from the nearby provinces (i.e., Anhui, Jiangsu, Zhejiang) and central part provinces (such as Shandong, Hebei) of eastern China. The correlation analyses among PM 2.5 and other pollutants show that the PM 2.5 formation in Shanghai is affected by the sources similar to those of CO such as combustion, industry, mobile and oxidation of hydrocarbons. Finally, the controlling strategies are discussed on the basis of this result.

show abstract

Water spray geoengineering to clean air pollution for mitigating haze in China’s cities

Cited by 52 publications

References 18 publications

The Haze Nightmare Following the Economic Boom in China: Dilemma and Tradeoffs

The Haze Nightmare Following the Economic Boom in China: Dilemma and Tradeoffs

Understanding meteorological influences on PM<sub>2.5</sub> concentrations across China: a temporal and spatial perspective

A Heavy Haze Episode in Shanghai in December of 2013: Characteristics, Origins and Implications

Contact Info

Product

Resources

About

Water spray geoengineering to clean air pollution for mitigating haze in China’s cities

Cited by 52 publications

References 18 publications

The Haze Nightmare Following the Economic Boom in China: Dilemma and Tradeoffs

The Haze Nightmare Following the Economic Boom in China: Dilemma and Tradeoffs

Understanding meteorological influences on PM&lt;sub&gt;2.5&lt;/sub&gt; concentrations across China: a temporal and spatial perspective

A Heavy Haze Episode in Shanghai in December of 2013: Characteristics, Origins and Implications

Contact Info

Product

Resources

About

Understanding meteorological influences on PM<sub>2.5</sub> concentrations across China: a temporal and spatial perspective