Contamination of the environment takes place when there are unwanted chemical substances present in the atmosphere. In fact, environmental chemistry mainly deals with the study of these unwanted substances and their effects.
Green chemistry eliminates the source of pollution by reducing or removing the risks of chemical feedstocks, reagents, solvents, and materials. Its innovation would count as a green chemistry technology if a system reduces or removes the hazardous chemicals used to clean up environmental pollutants.
Environmental Chemistry H Kaur Pdf Download
The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.
According to web of science database, we searched the key word, adaptogen. Based on the analysis of results, we got a conclusion that more and more researches focus on this field over past 10 years and it showed an increasing tendency from 1999 to 2018, which profiles that it is still a worthwhile direction to explore. Furthermore, we also found out that the many published articles concentrated on the direction of pharmacology pharmacy, biochemistry molecular biology, plant sciences and agriculture. It is still worthy to show its historical development and find out the relationships among adaptogen and tonics and ginseng-like herbs worldwide, which can give a hint to further research in plant-originated adaptogen. Summarized the results of previous studies and our own researches focused on tonics from TCM, we launched out our understanding of adaptogen: Herbs which can non-specific and non-toxicity help human body resist the environmental stress to maintain a homeostasis. The mechanism may multi-targets and multi-channel network to the neuroendocrine system. The adaptogens with tonics from TCM and the world-wide ginseng-like herbs have similar phytochemical and pharmacological properties. 2ff7e9595c
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