Metals Phytotoxicity Assessment and Phyto Maximum Allowable Concentration
Journal Title: Archives of Organic and Inorganic Chemical Sciences - Year 2018, Vol 3, Issue 4
Abstract
Metals are significant environmental pollutants, and their toxicity is a problem of increasing significance for ecological, evolutionary, nutritional and environmental reasons Nagajyoti [1]; Bieby Voijant Tangahu [2]; Mamatha [3]; Metals, such as cadmium, copper, lead, nickel, cobalt and mercury are major environmental pollutants, particularly in areas with high anthropogenic pressure. Metal accumulation in soils and plants is of concern in agricultural production due to the adverse effects on food safety and marketability, crop growth due to phytotoxicity, and environmental health of soil organisms. The influence of plants and their metabolic activities affects the geological and biological redistribution of heavy metals through pollution of the air, water and soil Nagajyoti [1]; Gyuricza [4] Anthropogenic metals contamination of ecosystems as a result of the application of industrial, transport, agrarian and other technologies causes a damage of the functioning of plants as an important component in ecosystem Bradl[5]; Alloway [6]; Kabata-Pendias [7] Often plants are the main accumulator of metals in polluted ecosystem. In the same time, plants play an important role in ecosystem as biomass producers and as biodiversity creators Rombke [8]; Kabata-Pendias [7]; Sardar [9]. Usually phytotoxicity is considered as a harmful influence of metal on plant growth and development Kabata Pendias [7]; Nagajyoti [1]; Satpathy[10]; Gill [11] . However, the setting of a safe level of toxicant for the plant is also very important, because it can help to prevent and to control the negative effects of metals in the ecosystem. Today a methodology that would determine the safe concentration of metals directly for plants in the soil is absent. After all, the existing standards for the content of metals in environmental objects are sanitary-hygienic and focused just on human health Lewis [12]; Smirnov [13]; Warne [14]. Determination of the metals safe level in the soil for plants can help to objectively assess state of the ecosystem and prevent the metals dangerous influence on plant Ryzhenko [15]. The Phyto Maximum Allowable Concentration (PMAC) was suggested as safe level of metal in the soil for plants.
Authors and Affiliations
NO Ryzhenko
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- EP ID EP603611
- DOI 10.32474/AOICS.2018.03.000170
- Views 75
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