Characteristics and Source Apportionment of PM 2.5 and O 3 during ...

In this paper, the characteristics of fine particulate matter (PM 2.5 ) and O 3 in January 2013 and 2018 in Beijing are discussed on the basis of daily sample ...

Characteristics and source apportionment of PM 2.5 during ...

The secondary inorganic aerosols, vehicle emissions, coal combustion, biomass burning, industry, and dust contributed 34.1%, 24.1%, 12.7%, 12.3%, 7.6%, and 7.2% ...

Source apportionment of PM2.5 before and after COVID-19 ... - NCBI

The composition of PM2.5 was assessed for 24 elements (by PIXE), secondary inorganic ions and black carbon. The PM2.5 mean concentration for the ...

Modelling air quality during the EXPLORE-YRD campaign – Part II ...

Highlights · Regional source apportionment is conducted for O3 and PM2. · Anthropogenic sources dominate the formation of O3 and PM2. · Industry ...

Spatio-temporal characteristics of PM2.5 and O3 synergic ... - Frontiers

In almost all cities of the YRD, PM2.5 shows a downward trend from 2015 through 2021 (Supplementary Figure S2), and the proportion of cities with PM2.5 ...

High-time-resolution chemical composition and source ...

The chemical compositions of PM2.5 in the three cities were all dominated by organic aerosol (OA) and nitrate (NO-3 ). Results of source ...

Water-soluble ions and source apportionment of PM 2.5 depending ...

In addition, synoptic weather patterns affecting pollution were typed using T-model principal component analysis. The results revealed that the ...

Chemical Composition and Source Apportionment of Wintertime ...

Twenty-four hour PM2.5 filter samples were collected from 23 December 2011 to 31 January 2012 at four sites in the types of traffic, residential, campus, and a ...

Chemical Characteristics and Source Apportionment of PM2.5 ...

The results showed a mean concentration of 197.40 µg m–3 for the PM2.5, which significantly decreased after the conversion from coal to natural ...

Elemental Characteristics and Source-Apportionment of PM2.5 ...

The average PM2.5 mass concentrations at JNU and that integrated for the four CPCB sites were 42.2 μg m−3 and 44.3 μg m−3 in the monsoon season and 121.4 μg m−3 ...

Characteristic of PM2.5 concentration and source apportionment ...

The mass fraction of organic matter, elemental carbon, three major ions, five minor ions, crustal elements, and trace elements in PM2.5 ...

Source apportionment of PM2.5 in Montréal, Canada, and health ...

The average OC and EC concentrations (± standard deviation) were 1.31±0.76 µg m−3 and 0.17±0.15 µg m−3, respectively (Table 2). While EC ...

Characteristics and Source Apportionment of PM2.5 and O3 during ...

In this paper, the characteristics of fine particulate matter (PM2.5) and O3 in January 2013 and 2018 in Beijing are discussed on the basis of daily sample ...

Characteristics and source apportionment of PM2.5 on an island in ...

In addition, different categories of air pollutant (PM2.5,. PM10, NO2, SO2, CO, O3) and meteorological parameters were measured at the ...

Full article: PM2.5 source apportionment with organic markers in the ...

Table 2. Average source contributions (µg/m3) to PM2.5 mass estimated with the PMF-CMB solution.

Source Apportionment of Ambient Particulate Matter (PM) in Two ...

Samples were analyzed for a comprehensive description of the physico-chemical characteristics of the aerosols, as well as their relative ...

Characteristics and Source Apportionment of Atmospheric PM2.5 at ...

From the results of CMB model, the main contribution sources to the PM2.5 in Tainan are traffic emissions (31.5%), ammonium sulfate (25.5%), ammonium nitrate ( ...

Comparative study of chemical characterization and source ...

Based on the filter analysis, sulfate was the most abundant component in PM2.5 (23.5%), followed by OC (18.1%), while for single particle ...

Inhalable Particulate Matter and Health (PM2.5 and PM10)

Emissions from combustion of gasoline, oil, diesel fuel or wood produce much of the PM2.5 pollution found in outdoor air, as well as a significant proportion of ...

Characteristics and Source Apportionment of Atmospheric PM2.5 at ...

... D G-factor of different particle sizes in the sampling period of these pollutants. Studies have reported that PM in the air in Tainan originates from a ...