Quantifying the relationship between PM concentration, visibility and planetary boundary layer height for long-lasting haze and fog–haze …
204 T. Luan et al.: Quantifying the relationship between PM2:5 concentration terioration of air quality and visibility in fog–haze mixed events. The interactions and feedbacks of all processes were particularly strong when the PM2:5 mass concentration was larger than ...
Detection of critical PM2.5 emission sources and their …
"Detection of critical PM2.5 emission sources and their contributions to a heavy haze episode in Beijing, China, using an adjoint model." Atmospheric Chemistry & Physics, 18, …
Quantifying Analysis of the Impact of Haze on Photovoltaic Power …
Haze has a significant impact on photovoltaic (PV) power generation. When the fine particulate matter reaches a certain concentration, it becomes the main facto.
Water-soluble ions in PM2.5 during spring haze and dust periods …
Haze and dust episodes occurred frequently during spring in Chengdu. • Nitrate dominated haze process and was limited by HNO 3 in ammonium-rich condition. Regional transport from southeastern Sichuan Basin greatly contributed to …
Spectrum changes due to PM2.5 haze versus …
Solar photovoltaic (PV) deployments are growing rapidly to provide a sustainable source of electricity, but their output is strongly impacted by environmental phenomena such as soiling and low...
ACP
As moderate haze events might occur more frequently under abundant ammonia and nitrate-dominated PM2.5 conditions, the major chemical processes during haze events and the control target should be re-evaluated to obtain the most effective control strategy.
Characteristics of water-soluble organic acids in PM2.5 during haze …
The average concentrations of PM2.5 and every WSOA species were higher in haze than those in non-haze. The correlations among species suggested that WSOAs in haze had complicated sources and secondary pathways, especially aqueous-phase reactions which played an important role on WSOAs.
A novel method for distinguishing fog and haze based on PM2.5, …
Haze and fog are both low visibility events, but with different physical properties. Haze is caused by the increase of aerosol loading or the hygroscopic growth of aerosol at high relative humidity, whereas visibility degradation in fog is due to the light scattering of fog droplets, which are transited from aerosols via activation. Based on the …
Assessing the Impact of Haze on Solar Energy Potential …
Atmospheric particulate pollutant can affect the transition of light through the lower atmosphere, reducing the solar radiation reaching a PV panel. So, the variation …
ACP
Sensitivity studies have revealed that high loadings of PM2.5 attenuate the incoming solar radiation reaching the surface to cool the low-level atmosphere, suppressing the development of the PBL, …
Sustainability | Free Full-Text | What Causes Haze Pollution? An Empirical Study of PM2.5 Concentrations in Chinese Cities
In recent years, many areas of China have suffered from serious haze pollution, which greatly affects human health and daily life. It is of policy importance to understand the factors that influence the spatial concentration of PM2.5. Based on data from 74 cities with PM2.5 monitoring stations in 2013 and 2014, this study presents the overall haze situation in …
Sources of PM2.5 Oxidative Potential during Haze and Non-haze …
The 24-hr ambient PM2.5 samples were collected throughout 2018–2019 and the analyzed OP was compared during haze episodes, which generally occurs in the dry season, and non-haze rainy season in the Chiang Mai-Lamphun basin.
Fine particulate matter (PM 2.5 ) in China at a city level
High occurrence of extreme haze episodes in recent years not only leads to a global concern due to its adverse health effects 13, 14, but also triggers the Chinese …
The Effects of PM2.5 Concentrations and Relative Humidity on Atmospheric Visibility in …
The relative contributions of PM2.5 concentration and relative humidity to the atmospheric visibility were measured PM2.5 concentrations dominate the variations in atmospheric visibility under dry ...
Comparison of chemical composition and airborne bacterial community structure in PM2.5 during haze and non-haze …
Haze is a typical type of air pollution and frequently has occurred in the winter in Guilin city recently, but information relating to chemical compositions and airborne bacterial community structure of atmospheric particulate matter (PM 2.5) during haze days remains very limited.) during haze days remains very limited.
IJERPH | Free Full-Text | The Elemental Characteristics and Human Health Risk of PM2.5 during Haze Episode and Non-Haze …
Fine particle matter (PM2.5) was directly related to seasonal weather, and has become the influencing factor of air quality that is harmful for human health in Chiang Rai province. The aims were determining the elemental composition in PM2.5 and human health risk in haze (March 2021) and non-haze episodes (July–August 2021). Nine …
Wintertime characteristics of water-soluble organic carbon in PM2.5 during haze and non-haze …
On haze days, average concentrations of all chemicals were greater than on non-haze days, except for Ca 2+. During haze episodes, SNA concentrations in PM 2.5 were particularly high. After SNA, OC was the next most significant contributor of PM 2.5.
Assessing the Impact of Haze on Solar Energy Potential Using …
This study provides the theoretical basis to design successful solar PV systems to be mounted on building rooftops or in other suitable sites, taking into account …
Assessing the Impact of Haze on Solar Energy Potential Using Long Term PM2.5 Concentration and Solar …
Assessing the Impact of Haze on Solar Energy Potential Using Long Term PM2.5 Concentration and Solar Insolation Filed Data in Naples, Italy
Evolution of Key Chemical Components in PM2.5 …
The POA in PM2.5 increased with the aggravation of haze, and the heterogeneous chemistry was enhanced by the aggravation of pollution. Liquid reactions were important in the formation of sulfate during …
Sustainability | Free Full-Text | Spatiotemporal Differences and …
In the meantime, studying the dynamic evolution of haze in China will also help to explore the evolution and governance effects of haze pollution in China, and …
Quantification of the Impact of Fine Particulate Matter on Solar …
Ambient fine particulate matter (PM2.5) could be a potential environmental risk for decreasing the available solar energy resources and solar photovoltaic (PV) power generation. This study quantifies the attenuation effects of PM2.5 on surface solar irradiance and system performance of different solar PV technologies in Hong Kong. The analysis …
Grey Correlation Analysis of Haze Impact Factor PM2.5
In recent years, frequent severe haze weather has formed in China, including some of the most populated areas. We found that these smog-prone areas are often relatively a "local climate" and …
Understanding the Rising Phase of the PM 2.5 …
Introduction. Particulate matter with diameters less than 2.5 μm (PM 2.5) are the primary pollutants in many Chinese cities 1. These tiny particles can readily …
Potential factors impacting PM2.5-Hg during haze evolution …
A relatively more intense solar radiation may be conducive to photoreduction during haze. Abstract ... Identification of potential sources of elevated PM2.5-Hg using mercury isotopes during haze events Atmos. Environ. (2021) X. Querol PM10 and PM2.5 source ...
Tracking PM2.5 and O3 Pollution and the Related Health Burden in China 2013–2020 | Environmental Science & Technology
Daily full-coverage PM2.5 data at a spatial resoln. of 10 km is our first near real-time product. The TAP PM2.5 is estd. based on a two-stage machine learning model coupled with the synthetic minority oversampling technique and a …
Potential factors impacting PM2.5-Hg during haze evolution …
In this study, Hg isotopes, backward trajectory, and emission inventory were utilized to explore the effects of possible emission sources and photochemical pathways on fine-particle bound mercury during two single haze events in February 2017 and January 2018 at ...
High time-resolved variations of proteins in PM2.5 during haze …
In addition to human activities, meteorological conditions (such as relative humidity, solar radiation) and atmospheric chemical composition might have an impact on protein concentration during the three haze pollution periods.
Composition Characteristics and Potential Regions of PM2.5 during Winter Haze …
ABSTRACT To investigative the causes and potential sources of fine particulate matter (PM2.5) pollution during winter haze pollution in typical industrial areas in northwest China, PM2.5 samples were collected during a winter extreme pollution event (from January 15 ...
Assessment of PM2.5 Patterns in Malaysia Using the Clustering Method
ABSTRACT Particulate matter is the parameter of most concern in air quality monitoring in Malaysia. This study discusses the variations and clustering of PM2.5 recorded from 2018 to 2019 at 65 stations of the Continuous Air Quality Monitoring Network of the Malaysian Department of Environment. PM2.5 concentrations were recorded …
Nitrate dominates the chemical composition of PM2.5 during haze …
Nitrate become the main component of PM 2.5 than sulfate during the haze events in Beijing. High NOx emission, low temperature and low aerosol acidity are the key factors to promote nitrate formation in Beijing. • Molar ratio of NH 4 + to SO 4 2-increased from 1.5 (before 2013) to 3.33 (2017) due to ammonia-rich atmosphere in Beijing.
A Review of the Effects of Haze on Solar Photovoltaic Performance
Solar photovoltaic (PV) strongly impacted by environmental phenomena induced by haze. •. Industrial exhausted aerosol, dust storms particles, bushfire smoke …
Potential factors impacting PM2.5-Hg during haze evolution …
The intensity of solar radiation with hour resolution during sampling periods for PM 2.5 samples collected in two haze events occurred in Gucheng. The solar radiation intensity data are from a dataset (M2T1NXRAD 5.12.4) published by …
