Occurrence and transport of SARS-CoV-2 in wastewater streams and its detection and remediation by chemical-biological methods.

This paper explains the transmission of SARS-CoV and influences of several environmental factors in the transmission process. The article highlighted several methods of collection, sampling and monitoring/estimation as well as surveillance tool for detecting SARS-CoV in wastewater streams. In this context, WBE (Wastewater based epidemiology) is found to be the most effective surveillance tool.

Physical, chemical and optical properties of PM and gaseous emissions from cooking with biomass fuel in the Indo-Gangetic Plain.

The current study was designed to capture real-world cooking process-wise emissions generated by the combustion of mixed biomass fuel in traditional mud cookstoves in rural kitchens of the north Indian state of Uttar-Pradesh during regular meal preparations. Combustion characteristics, including modified combustion efficiency, thermal efficiency and burn rate, were examined to understand their relationship with emissions. Variations were observed in emission factors (EFs) of PM, trace gases, namely CO, CO, NO and SO for different cooking processes.

A note on unusual Si/Al ratios in PM and PM road dust at several locations in India.

The Si/Al ratios in road dust (PM and/or PM) at several locations in India were examined and found to range between 1.6 and 84.9.

PM and PM chemical source profiles with optical attenuation and health risk indicators of paved and unpaved road dust in Bhopal, India.

Size classified (PM and PM) paved and unpaved road dust chemical source profiles, optical attenuation and potential health risk from exposure to these sources are reported in this study. A total of 45 samples from 9 paved road and 6 unpaved road sites located in and around Bhopal were re-suspended in the laboratory, collected onto filter substrates and subjected to a variety of chemical analyses. In general, road dust was enriched (compared to upper continental crustal abundance) in anthropogenic pollutants including Sb, Cu, Zn, Co, and Pb.