An Assessment of Severity of Environmental Aerosol Particles During Precipitation

Abstract

Africa is one of the sources of biomass burning emissions. It is estimated that about 6 million tons of fuel per day is consumed in the southern hemisphere. Biomass burning has an important contribution on aerosol particle concentrations in the atmosphere. Efforts have been made to conduct research in Gaborone to monitor the concentration of atmospheric aerosols in atmosphere. These studies were mainly confined to measurement of concentration of aerosols and establishing a relation with determinants such as carbon dioxide concentration, biomass burning, and precipitation among others. However, very little seems to have been done in relating the empirical data to a mathematical model or to study quantitatively the impact of precipitation on the concentration of aerosols larger than 0.3?m in the atmosphere. In this paper we provide an objective criterion for classifying measurements on concentration of atmospheric aerosol particles and build a mathematical model that helps us to understand variations in weekly aerosol concentrations in terms of their severity. We also construct an index of severity which when applied to different seasons under the study period indicates that precipitation significantly scavenges atmospheric aerosols.International Journal of Environment Volume-4, Issue-3, June-August 2015Page: 81-95

Status and use of pesticides in forage crops in India

“…32) In another study, milk and fodder samples around the Musi River belt revealed a dicofol concentration of 0.07 ppm in fodder samples and a dimethoate concentration of 0.13 ppm in milk samples, which were above the MRL values established by the EU and CAC. 33) The increasing presence of pesticide residues in the meat 34) and milk [35][36][37][38] is of great concern with regard to ensuring food safety and human health and might be responsible for lack of pesticide recommendations specific to forage-crop protection by pesticide manufacturers and policy makers in India. However, a well-planned strategy involving the use of green pesticides along with good agricultural practices could enable the efficient use of pesticides for forage crops at a time when the country is faced with the challenge of feeding an increasing livestock population from limited land resources.…”