Spatio-temporal variations and trends of major air pollutants in China during 2015–2018

Maji, Kamal Jyoti; Sarkar, Chinmoy

doi:10.1007/s11356-020-09646-8

Cited by 33 publications

(13 citation statements)

References 74 publications

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“…In the bottom−up estimate, national PM 2.5 exposure increases from 2010 (51.9 μg m −3 ) to 2012 (52.8 μg m −3 ), and then decreases by 5.6 μg m −3 over 2012-2015 (a reduction of 11%, Figure 2e). A similar reduction in national PM 2.5 exposure over 2013-2019 was seen in previous work (Geng et al, 2021;Health Effects Institute, 2020;Huang et al, 2021;Liang et al, 2020;Maji & Sarkar, 2020;Silver, Conibear, et al, 2020;Yue et al, 2020;.…”

Section: Trends In Emissions Exposure and Public Health Over 2010−2020supporting

confidence: 83%

Emission Sector Impacts on Air Quality and Public Health in China From 2010 to 2020

et al. 2022

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Long−term ambient fine particulate matter (PM 2.5 ) and ozone (O 3 ) exposure is a leading public health problem in China, associated with 9% (95% uncertainty interval, 95UI: 7-11%) of the healthy life lost to disease in 2019 (GBD, 2019 Risk Factors Collaborators, 2020Yin et al., 2020). Previous studies have found that long−term ambient PM 2.5 exposure (population−weighted concentrations) in China peaked

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Section: Trends In Emissions Exposure and Public Health Over 2010−2020supporting

confidence: 83%

Emission Sector Impacts on Air Quality and Public Health in China From 2010 to 2020

et al. 2022

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“…The recent trends in emission release can be considered in the example of China. A recent analysis ( Maji and Sarkar, 2020 ) has revealed a gradual decrease in the concentrations of major air pollutants, as detected by monitoring stations across China. However, these decreases are very modest, and it is difficult to foresee what factors can bring about more substantial pollution reduction.…”

Section: Recent Development Trends and Toolsmentioning

confidence: 99%

Process assessment, integration and optimisation: The path towards cleaner production

Varbanov

Jia

Lim

2021

Journal of Cleaner Production

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This contribution starts from the broad perspective of the global material cycles, analysing the main resource and pollution issues world-wide from the viewpoint of the disturbances to these cycles caused by human activities. The issues are analysed in the light of the currently developing COVID-19 pandemic with the resulting behavioural and business pattern changes. It has been revealed in the analysis of previous reviews that there is a need for a more comprehensive analysis of the resource and environmental impact contributions by industrial and urban processes, as well as product supply chains. The review discusses the recent key developments in the areas of Process Integration and Optimisation, the assessment and reduction of process environmental impacts, waste management and integration, green technologies. That is accompanied by a review of the papers in the current Virtual Special Issue of the Journal of Cleaner Production which is dedicated to the extended articles developed on the basis of the papers presented at the 22nd Conference on Process Integration for Energy Saving and Pollution Reduction. The follow-up analysis reveals significant advances in the efficiency and emission cleaning effects of key processes, as well as water/wastewater management and energy storage. The further analysis of the developments identifies several key areas for further research and development – including increases of the safety and robustness of supply networks for products and services, increase of the resources use efficiency of core production and resource conversion processes, as well as the emphasis on improved product and process design for minimising product wastage.

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“…It is worth noting that changes in the concentration of O 3 are also related to climate and meteorology. Changes of local meteorological conditions [35], El Niño Southern Oscillates [36], and the Asian monsoon [37] will also change the aerosol and organic matter in the atmosphere, including biological VOCs, which can form secondary organic aerosols and change the concentration of O 3 [38].…”

Section: Difference In Spatial Distributions Of Pollutant Concentrations and Aqimentioning

confidence: 99%

Analysis of Spatio-Temporal Variation Characteristics of Main Air Pollutants in Shijiazhuang City

Tui¹,

Qiu²,

Ju³

et al. 2021

Sustainability

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Air pollution has become one of the important concerns of environmental pollution in the Beijing–Tianjin–Hebei region. As an important city in Beijing–Tianjin–Hebei, Shijiazhuang has long been ranked in the bottom ten in terms of air quality in the country. In order to effectively grasp the influencing factors and current distribution of air pollution in Shijiazhuang City, this paper collects data on the top air pollutants in Shijiazhuang from 2017 to 2019, analyzes the characteristics of time changes in the region, and uses the Kriging interpolation method to affect the air pollutants in this area. The spatial distribution characteristics are studied. The results show (1) From 2017 to 2019, the environmental quality of Shijiazhuang City showed a decreasing trend except for O3. (2) Seasonal changes show that NO2, PM2.5, and CO show as winter > autumn > spring > summer, PM10, SO2 show as winter > spring > autumn > summer, and O3 concentration changes as summer > spring > autumn > winter. (3) The daily change trends of NO2, SO2, PM10 and PM2.5 are similar, while the change trends of O3 and NO2 are opposite. (4) The correlations between air quality index (AQI) and concentrations suggest that PM10, PM2.5, and CO contribute the most to undesirable pollution levels in this area, while NO2, SO2, and O3 contribute less to undesirable pollution. We have concluded that the particulate pollution in Shijiazhuang City has been effectively controlled, thanks to the relevant measures introduced by the government, but the O3-based compound pollution is gradually increasing, so particulate pollution and O3 pollution need to be treated together. The research results of this article have important practical significance for urban or regional air environment monitoring and prevention.

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Spatio-temporal variations and trends of major air pollutants in China during 2015–2018

Cited by 33 publications

References 74 publications

Emission Sector Impacts on Air Quality and Public Health in China From 2010 to 2020

Emission Sector Impacts on Air Quality and Public Health in China From 2010 to 2020

Process assessment, integration and optimisation: The path towards cleaner production

Analysis of Spatio-Temporal Variation Characteristics of Main Air Pollutants in Shijiazhuang City

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