Precipitation scavenging effect in Air Pollution and Mortality in Bogotá

Luis Camilo Blanco Becerra*; Leticia Hernández Cadena; Magali Hurtado Díaz; Isabelle Romieu

doi:10.1289/isee.2016.4115

Precipitation scavenging effect in Air Pollution and Mortality in Bogotá

ISEE Conference Abstracts ◽

10.1289/isee.2016.4115 ◽

2016 ◽

Vol 2016 (1) ◽

Author(s):

Luis Camilo Blanco Becerra* ◽

Leticia Hernández Cadena ◽

Magali Hurtado Díaz ◽

Isabelle Romieu

Keyword(s):

Air Pollution ◽

Precipitation Scavenging ◽

Scavenging Effect

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Correlation between air pollutants concentration and meteorological factors on seasonal air quality variation

Journal of Air Pollution and Health ◽

10.18502/japh.v5i1.2856 ◽

2020 ◽

Author(s):

Sunday Oji ◽

Haruna Adamu

Keyword(s):

Air Pollution ◽

Air Pollutants ◽

Meteorological Parameters ◽

Environmental Fate ◽

Meteorological Factors ◽

Meteorological Data ◽

Urban Air Pollution ◽

Dry Season ◽

Scavenging Effect ◽

Quality Variation

Introduction: Hitherto studies have concentrated on the pollution concentra- tion in an ambient environment not putting into cognizance meteorological factors that can determine the fate/trail of the pollutant in the atmosphere. Materials and methods: Accordingly, the study monitored ambient topical air triplicate day-time concentration of NO2, PM10, SO2, H2S and CO using portable digital air pollution detecting device for 30 days in each of the rep- resentative apex months of dry (April) and wet (August) months of 2018 in Kano Metropolis. However, meteorological data were collated from Nigerian Meteorological Agency (NiMet). Results: The result showed pollution concentration for Bompai and Sabon Gari are the highest followed by Dowrawa and school of technology. On the other hand Bompai and Sabon Gari had higher concentration in all pollutants in dry season followed by school of technology and Dowrawa. Furthermore, temperature, relative humidity and precipitation washout or scavenging effect on the pollutants were analyzed quantitatively. The result showed concen- tration of the pollutants in the atmosphere where lower under condition of increased precipitation, low temperature and increased humidity level com- pared to that of the dry season. Conclusion: Consequently, the study exposes the influence of meteorological parameters on the seasonal variability, concentration and environmental fate of pollutant, which could be used in controlling urban air pollution thereby sustainably improving environmental quality and protecting human health.

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Scavenging of atmospheric particulates by snow in Changji, China

Global NEST Journal ◽

10.30955/gnj.002548 ◽

2018 ◽

Vol 20 (3) ◽

pp. 471-476 ◽

Cited By ~ 2

Keyword(s):

Air Pollution ◽

Influencing Factor ◽

Drying Time ◽

North West ◽

Scavenging Effect ◽

Atmospheric Particulates ◽

The North ◽

Large Particles ◽

Before And After ◽

Scavenging Ratio

<p>Changji is an arid city in the north west of China which suffers from severe air pollution due to increasing vehicle use and heating with coal. Samples (TSP, PM10, PM5, PM2.5) were collected before and after several snow events, for revealing the snow scavenging effect and influencing mechanisms. The result indicated that the snow scavenging effect was obvious. The highest snow scavenging quantity and scavenging ratio is TSP, followed by PM10, PM5 and PM2.5. Snow scavenging quantity was dependent on the particulate diameter. Snow intensity, drying time and amount of snow influenced scavenging ratio, and snow intensity is the key influencing factor. Scavenging ratio increases with the increase of snow intensity. Higher snow intensity can reduce the selective scavenging of particulate diameters, the scavenging ratio of different particulate diameter will get close to each other. The lower snow intensity was, the higher selectivity was. Light snow will scavenge large particles obviously, but little for small particle.</p>

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