Air quality analysis and indexing of Kolkata city with respect to vertical floor heights and seasonal variation

作者：Mukherjee Manjusha; Basu Jayanta; Datta Siddhartha^*

来源：Toxicological and Environmental Chemistry, 2012, 94(10): 1864-1885.

DOI：10.1080/02772248.2012.712125

• air pollution
• air quality index
• particulate matter
• vertical floor
• seasonal variation

Air pollution is one of the most important global environmental issues. Urban air quality is generally becoming vulnerable especially in the developing countries due to various developmental activities. Several national and international studies prove that air pollution is harmful to human health and its long term exposure contributes to even mortality. Current study has been designed to determine the vertical floor wise air quality status of the city of Kolkata and the seasonal variation of the pollutants during two consecutive years. Particulate matter (PM10 and suspended particulate matter), oxides of nitrogen, sulfur dioxide and carbon monoxide were analyzed for a total number of 135 air quality samples throughout the study area and period. Pollutants were found positively correlated with each other and with the floor heights. According to the air quality indexing, all the places were found affected from moderate to severe air pollution irrespective of the vertical floor heights, seasons and places. Although, no such seasonal trend has been emerged from the study but the number of samples beyond standard is found highest during the winter season followed by pre-monsoon.

• 出版日期2012