نتایج جستجو برای: pollution of agriculture
تعداد نتایج: 21178920 فیلتر نتایج به سال:
Pesticides are chemicals to control a variety of pests that can damage crops and livestock and reduce farm productivity. Organophosphate (OP) compounds are a group of pesticides that includes some of the most toxic chemicals used in agriculture. OP toxicity is due to the ability of these compounds to inhibit an enzyme, acetyl cholinesterase at cholinergic junctions of the nervous system. This r...
A 155,947 ha portion of the Shenango River watershed in western Pennsylvania was evaluated as to the potential impact of agriculture drainage on water quality. Approximately a third of the area is being used as either cropland or pasture with approximately an equal percentage in forest lands. Eleven subwatersheds were evaluated as to their potential for nonpoint source pollution according to th...
Wireless sensor networks (WSNs) are attracting increasing research attention, due to their wide spectrum of applications, including military purposes for monitoring, tracking and surveillance of borders, intelligent transportation systems for monitoring traffic density and road conditions, and environmental applications to monitor, for example, atmospheric pollution, water quality, agriculture,...
Malacca River water quality is affected due to rapid urbanization development. The present study applied LULC changes towards water quality detection in Malacca River. The method uses LULC, PCA, CCA, HCA, NHCA, and ANOVA. PCA confirmed DS, EC, salinity, turbidity, TSS, DO, BOD, COD, As, Hg, Zn, Fe, E. coli, and total coliform. CCA confirmed 14 variables into two variates; first variate involves...
Animal agricultural non-point source pollution remains one of the most challenging watershed problems. As reduction of the pollution becomes the top priority in the Clean Water Action Plan and states are required to implement the non-degradation policy, understanding the characteristics of animal agriculture, watershed impairment and their relationships at the state level are very important for...
From 1991 onward, the European Union (EU) member states have had to comply with the Nitrates Directive. The aim of this directive is to sustainably protect ground and surface waters from pollution with nitrogen (nitrate) originating from agriculture. Agriculture is, on an EU level, the largest single source of nitrate (runoff, leaching) pollution, although households and industries also contrib...
Nitrate concentration in groundwater has frequently been linked to non-point pollution. At the same time the existence of intensive agriculture and extremely intensive livestock activity increases the potential for nitrate pollution in shallow groundwater. Nitrate used in agriculture could cause adverse effects on human and animal health. In order to evaluate the groundwater nitrate pollution, ...
Thermal stability of soil organic matter responds to long-term fertilization practices J. Leifeld, U. Franko, and E. Schulz Air Pollution/Climate Group, Agroscope FAL Reckenholz, Swiss Federal Research Station for Agroecology and Agriculture, Switzerland UFZ – Umweltforschungszentrum Leipzig-Halle, Germany Received: 18 January 2006 – Accepted: 7 February 2006 – Published: 4 April 2006 Correspon...
The production and use of chemicals is an important source of economic welfare in Ghana. However, many chemicals also enter the environment and chemical pollution remains a major environmental issue in Ghana. In Ghana, mining and agriculture remain the major contributors to chemical pollution. For mining; mercury, cyanide and arsenic are normally the reported cases of contamination. Studies hav...
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