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| Titel: |
Air Quality Profile of Inorganic Ionic Composition of Fine Aerosols at Two Sites in Mumbai City |
| Auteur: |
Kumar, Rakesh Elizabeth, Abba Gawane, A. G. |
| Verschenen in: |
Aerosol science and technology |
| Paginering: | Jaargang 40 (2006) nr. 7 pagina's 477-489 |
| Jaar: |
2006-06-01 |
| Inhoud: |
The levels of PM10, PM2.5, and NO2 were studied at a kerbsite and ambient site in Mumbai. Measurements were also made for eight inorganic ions (F-, Cl-, NO3-, SO2-4, Na+, K+, NH4+, Ca2+, and Mg2+) in the PM2.5 fraction. During the study period, PM2.5, PM10 and NO2 levels ranged between 11-91, 18-125, and 8-64 μg m- 3 at a ambient site whereas at the kerbsite the ranges were 10-176, 21-189, and 4-55 μg m-3 respectively. Average PM2.5 values were 42 μg m- 3 at ambient and 69 μg m-3 at the kerbsite. The measured ions accounted for about 50% of the PM2.5 mass. Non-sea-salt (nss) sulfate contributed 91% and 85% of the ionic mass at the ambient and kerbsite sites respectively. Due to biomass sources of K, only about 5% of K+ was from seas salt. The average equivalent ratio of NH4+ to nss- SO24-, and NO3- was over 1, indicating high source strength of ammonia. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 3 van 7 gevonden artikelen
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