Study on heavy metal contamination of agricultural soils and vegetables grown in the Delhi segment of Yamuna river basin, Global Health Perspectives
Sehgal Meena, Suresh R, Sharma Ved Prakash, Gautam Sumit Kumar
The treated or untreated industrial wastewaters from different sources are discharged into Yamuna river. The river water, when used for irrigation or during flood, introduces these contaminants including heavy metals to the agricultural soils of the cultivated area in flood plain of Yamuna. Subsequently, these metals are transported from soils to the edible parts of grown crop resulting into accumulation in local communities.
Variation in air quality at Filling Stations, Delhi, India, International Journal of Environmental Studies
Sehgal, M, Suresh R, Sharma VP, and Gautam SK
The air was monitored for two consecutive periods, in the dry and the rainy seasons (2009–2010) at 40 petroleum-filling stations in the Indian capital, Delhi, to assess variations in carbon monoxide, nitrogen dioxide, PM10, PM2.5, benzene, toluene and xylene content. PM10 and PM2.5 concentrations exceeded the national ambient air quality standards at all the monitoring locations with maximum values of 1105 and 625 micro gm_3, respectively, in the dry season.