Air quality monitoring in Chennai, India, in the summer of 2005
| Autor: | D. Elango, M. Pulikesi, V.N. Rayudu, Subramanian Sivanesan, P. Baskaralingam, V. Ramamurthi |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Environmental Engineering
Ozone Time Factors Meteorology Health Toxicology and Mutagenesis Air pollution India Atmospheric sciences medicine.disease_cause Wind speed chemistry.chemical_compound Oxidants Photochemical Air Pollution medicine Environmental Chemistry Relative humidity Waste Management and Disposal Air quality index Temperature Humidity Wind direction Particulates Pollution chemistry Sunlight Environmental science Nitrogen Oxides Seasons Environmental Monitoring |
| Zdroj: | Journal of hazardous materials. 136(3) |
| ISSN: | 0304-3894 |
| Popis: | During the summer of 2005, concentrations of surface ozone (O(3)), oxides of nitrogen (NO(x)), respirrable suspended particulate matter (RSPM) and total suspended particulate matter (TSPM), relative humidity (RH), wind speed (WS) and wind direction (WD) were collected over successive periods of about 24 h at five sites. UV photometric ozone analyzer was used to measure the concentration of surface O(3). The study deals with the characteristics of hourly and daily mean surface O(3) under different climatic conditions, such as temperature, relative humidity, wind speed and wind direction and other pollutant concentrations. The maximum hourly O(3) concentration reached 53 ppb on 17th May. The ground-level O(3) concentration in Chennai varied between 2 and 53 ppb. The concentration of NO(x) and O(3) were below the prescribed limits. The TSPM values were exceeded the National Ambient Air Quality Standards (NAAQS) at Koyambedu, Mandaveli, Taramani and Vallalar Nagar study area. |
| Databáze: | OpenAIRE |
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