{"title":"Temporal Analysis of Atmospheric Pollutant Concentrations with Specific Regard to NAAQS Compliance in an Industrial Cluster of New Delhi, India","authors":"Ajay Kumar Jha, Charu Jhamaria, Manish Yadav, Nitin Kumar Singh, Pawan Kumar Singh, Manish Kumar Jindal, Sunil Kumar Mishra, Suman Kumar","doi":"10.1007/s12647-023-00688-0","DOIUrl":null,"url":null,"abstract":"<div><p>The present study focuses on determining the post COVID 19 status of air pollution and temporal variability of pollutants over the Okhla industrial area, New Delhi. The 24 hourly concentration datasets of PM<sub>10</sub>, PM<sub>2.5</sub>, NO<sub>2</sub> and SO<sub>2</sub>, for the period of November 2021 to November 2022 were collected from continuous ambient air quality monitoring station of study area. During the study period, the concentration of PM<sub>10</sub> and PM<sub>2.5</sub> was observed to be varying from 9.73 to 640.14 µg/m<sup>3</sup> and 6.18 to 448.06 µg/m<sup>3</sup>, respectively. The average values of PM<sub>10</sub> and PM<sub>2.5</sub> were recorded as 236.57 and 107.33 µg/m<sup>3</sup>, respectively; which were much higher than the standard values of Central Pollution Control Board. In case of gaseous pollutants, the mean value of SO<sub>2</sub> was recorded as 9.31 µg/m<sup>3</sup> which was much lesser as compared to the set standards. Contrary, the values for NO<sub>2</sub> varied from 14.75 to 219.36 µg/m<sup>3</sup> and these values were on the higher side when compared with standards. The Bivariate plots were also drawn to examine the role of wind speed and wind direction in the study area. The results revealed that at low wind speed, high concentrations were prevailing and potential sources of pollutant are in south east direction. Overall, the results of this study highlighted that situation is alarming after COVID 19, and need immediate intervention for the abatement of air pollution in studied region.</p></div>","PeriodicalId":689,"journal":{"name":"MAPAN","volume":"39 2","pages":"261 - 273"},"PeriodicalIF":1.0000,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"MAPAN","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s12647-023-00688-0","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0
Abstract
The present study focuses on determining the post COVID 19 status of air pollution and temporal variability of pollutants over the Okhla industrial area, New Delhi. The 24 hourly concentration datasets of PM10, PM2.5, NO2 and SO2, for the period of November 2021 to November 2022 were collected from continuous ambient air quality monitoring station of study area. During the study period, the concentration of PM10 and PM2.5 was observed to be varying from 9.73 to 640.14 µg/m3 and 6.18 to 448.06 µg/m3, respectively. The average values of PM10 and PM2.5 were recorded as 236.57 and 107.33 µg/m3, respectively; which were much higher than the standard values of Central Pollution Control Board. In case of gaseous pollutants, the mean value of SO2 was recorded as 9.31 µg/m3 which was much lesser as compared to the set standards. Contrary, the values for NO2 varied from 14.75 to 219.36 µg/m3 and these values were on the higher side when compared with standards. The Bivariate plots were also drawn to examine the role of wind speed and wind direction in the study area. The results revealed that at low wind speed, high concentrations were prevailing and potential sources of pollutant are in south east direction. Overall, the results of this study highlighted that situation is alarming after COVID 19, and need immediate intervention for the abatement of air pollution in studied region.
期刊介绍:
MAPAN-Journal Metrology Society of India is a quarterly publication. It is exclusively devoted to Metrology (Scientific, Industrial or Legal). It has been fulfilling an important need of Metrologists and particularly of quality practitioners by publishing exclusive articles on scientific, industrial and legal metrology.
The journal publishes research communication or technical articles of current interest in measurement science; original work, tutorial or survey papers in any metrology related area; reviews and analytical studies in metrology; case studies on reliability, uncertainty in measurements; and reports and results of intercomparison and proficiency testing.