Multisize particulate matter and volatile organic compounds in arid and semiarid areas of Northwest China

Zhou, Xi; Li, Zhongqin; Zhang, Tingjun; Wang, Feiteng; Yan, Tao; Zhang, Xin

doi:10.1016/j.envpol.2022.118875

Cited by 5 publications

(2 citation statements)

References 127 publications

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“…Other indoor air pollutants, such as CO, NOx, and O 3 , were not monitored in this study. Atmospheric oxidation of VOCs in the presence of NOx leads to the formation of secondary organic aerosols in PM 2.5 [ 47 , 48 ]. Therefore, indoor air pollution should be comprehensively evaluated in future studies and the interaction between different pollutants should be clarified.…”

Section: Discussionmentioning

confidence: 99%

The energy and time saving coordinated control methods of CO2, VOCs, and PM2.5 in office buildings

Zhang

Hou

et al. 2022

PLoS ONE

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Indoor air pollution is complex and serious. In fact, an on-site investigation of an office building revealed that the concentration of three typical pollutants (CO2, VOCs, PM2.5) exceeded the Chinese standard. To identify a better control method to achieve good indoor air quality, an orthogonal experiment was carried out in an environmental chamber to compare the control time and energy consumption of four control methods (purifier+ and window+, purifier+ and window-, purified fresh air 240 m3/h and purified fresh air 400 m3/h) to meet the standard established for pollutants. The purifier+ and window+ method was found to be more effective in most conditions, with a control time reduced by 8.06% and energy consumption reduced by 11.91% compared with the traditional control method of purified fresh air 240 m3/h. This research highlights the optimal control strategy for the air quality in office buildings under different pollution conditions.

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Section: Discussionmentioning

confidence: 99%

The energy and time saving coordinated control methods of CO2, VOCs, and PM2.5 in office buildings

Zhang

Hou

et al. 2022

PLoS ONE

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“…The Fenwei Plain in the YRB became one of the three key areas for air pollution control in China in 2018, replacing the Pearl River Delta [ 51 ]. In recent years, some scholars have explored the spatial and temporal characteristics and driving mechanisms behind air pollution, focusing on key cities [ 26 , 52 , 53 , 54 ], major regions, and urban agglomerations [ 51 , 55 , 56 , 57 ] in the YRB. Wang et al [ 58 ] studied the causes of heavy haze pollution in Xi’an, Shaanxi Province, and found that high-intensity anthropogenic emissions, relative humidity, consistent low temperature, and surface air pressure were the main drivers of heavy pollution formation.…”

Section: Introductionmentioning

confidence: 99%

Multi-Scale Effects of Meteorological Conditions and Anthropogenic Emissions on PM2.5 Concentrations over Major Cities of the Yellow River Basin

Yao

Liu

Song

et al. 2022

IJERPH

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The mechanism behind PM2.5 pollution is complex, and its performance at multi-scales is still unclear. Based on PM2.5 monitoring data collected from 2015 to 2021, we used the GeoDetector model to assess the multi-scale effects of meteorological conditions and anthropogenic emissions, as well as their interactions with PM2.5 concentrations in major cities in the Yellow River Basin (YRB). Our study confirms that PM2.5 concentrations in the YRB from 2015 to 2021 show an inter-annual and inter-season decreasing trend and that PM2.5 concentrations varied more significantly in winter. The inter-month variation of PM2.5 concentrations shows a sinusoidal pattern from 2015 to 2021, with the highest concentrations in January and December and the lowest from June to August. The PM2.5 concentrations for major cities in the middle and downstream regions of the YRB are higher than in the upper areas, with high spatial distribution in the east and low spatial distribution in the west. Anthropogenic emissions and meteorological conditions have similar inter-annual effects, while air pressure and temperature are the two main drivers across the whole basin. At the sub-basin scale, meteorological conditions have stronger inter-annual effects on PM2.5 concentrations, of which temperature is the dominant impact factor. Wind speed has a significant effect on PM2.5 concentrations across the four seasons in the downstream region and has the strongest effect in winter. Primary PM2.5 and ammonia are the two main emission factors. Interactions between the factors significantly enhanced the PM2.5 concentrations. The interaction between ammonia and other emissions plays a dominant role at the whole and sub-basin scales in summer, while the interaction between meteorological factors plays a dominant role at the whole-basin scale in winter. Our study not only provides cases and references for the development of PM2.5 pollution prevention and control policies in YRB but can also shed light on similar regions in China as well as in other regions of the world.

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Photocatalytic NOx degradation performance of TiO2-nanofiber-spray-coated foam composite according to saturated conditions

Yoo

Lee²,

Park³

et al. 2022

Construction and Building Materials

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Multisize particulate matter and volatile organic compounds in arid and semiarid areas of Northwest China

Cited by 5 publications

References 127 publications

The energy and time saving coordinated control methods of CO2, VOCs, and PM2.5 in office buildings

The energy and time saving coordinated control methods of CO2, VOCs, and PM2.5 in office buildings

Multi-Scale Effects of Meteorological Conditions and Anthropogenic Emissions on PM2.5 Concentrations over Major Cities of the Yellow River Basin

Photocatalytic NOx degradation performance of TiO2-nanofiber-spray-coated foam composite according to saturated conditions

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