tailieunhanh - Pesticides classification and its impact on environment

Pesticides are substance or mixture of substance which differ in their physical, chemical and identical properties from one to other. Hence, they are classified based on these properties. Some pesticides are also categorized into various classes depending on the needs. Presently, three most popular classifications of pesticides which are widely used is classification based on the mode of entry, pesticide function and the pest organism they kill, the chemical composition of the pesticide. Based on toxicity of pesticides, WHO classified them into four classes: extremely dangerous, highly dangerous, moderately dangerous and slightly dangerous. | 2019 8 3 1889-1897 EXCELLENT PUBLISHERS International Journal of Current Microbiology andAppliedSciences ISSN 2319-7706 Volume 8 Number 03 2019 Journal homepage http Review Article https Pesticides Classification and its Impact on Environment Rajveer Kaur1 Gurjot Kaur Mavi2 and Shweta Raghav3 1School of Animal Biotechnology 2Department of Animal Genetics and Breeding 3Department of Veterinary Anatomy Fisheries Guru Angad Dev Veterinary and Animal Sciences University Ludhiana-141004 Punjab India Corresponding author ABSTRACT Keywords Pesticides WHO classification Environment Toxicity Article Info Accepted 15 January 2019 Available Online 10 February 2019 Pesticides are substance or mixture of substance which differ in their physical chemical and identical properties from one to other. Hence they are classified based on these properties. Some pesticides are also categorized into various classes depending on the needs. Presently three most popular classifications of pesticides which are widely used is classification based on the mode of entry pesticide function and the pest organism they kill the chemical composition of the pesticide. Based on toxicity of pesticides WHO classified them into four classes extremely dangerous highly dangerous moderately dangerous and slightly dangerous. Introduction Environmental pollution is a global phenomenon and the risks and outcomes on human health are a worrying factor. The present situation of pollution is a man-made calamity though the fact of benefit-risk ratio also needs to be weighed equally before complaining on the issue of pollution. Pesticides are designed to kill and because their mode of action is not specific to one species they often kill or harm organisms other than pests including humans. The WHO estimates that there are 3 million cases of pesticide poisoning each year and up to 220 000 deaths primarily in developing countries. .

• Môi trường
• Pesticides classification
• Impact on environment
• WHO classification
• Moderately dangerous
• Slightly dangerous
• Bacillus sphaericus
• Inhibition zones
• Chemical pesticides
• DNA homology
• Deoxyribonucleic acid homologies
• Point Themes
• Grid Themes
• Descriptive Statistics
• Network Analysis
• Event Types
• Unsupervised Classification