Report on environmental pollution
Answers
Explanation:
The systematic pollution of our environment is one of the biggest hazards that humanity faces today. People are becoming increasingly aware of the threat posed by pollution and governments are enacting legislations aimed at protecting the environment.
During the last few decades, the global environment has gone through serious challenges and changes. Population pressure has escaped rapidly consequently resources have dwindled.
Pollution is an undesirable change in the physical and biological operations of our air, land and water. They may be or will be harmful to human life, species our industries process; living condition and culture assets or deteriorate our material resources.
Human being can be exposed to pollutant in many ways through the air they breathe, the water they drink, the food they eat and the cosmetics, drugs and other products they use. The continuing discovery of previously unsuspected hazards from various chemicals and other substances underscore the point. The environmental and human health effect of even those substances identified for priority consideration.
Scientific developments have been a growing concern about the links between the health and environment and worldwide industrial, land and resources management practices. Today there is a growing concern for global scale environmental degradation brought by combinations of all people on earth.
Manufacturing plants, agriculture production and other sources release pollutants into the air, water and soil, pollutants are intentionally moved away through the management of waste including residues removed from the air and water by pollution control equipment.
Pollutants also move among the media by changing into more, or less hazardous substances as they move through environment. They may accumulate in sinks for long period of time and people often are exposed to the same pollutant through the one medium by breathing air, drinking water, eating food or absorbing it through skin.
Generally new industrial plants reduce less waste than older ones. One report estimates that new factories cut the amount of hazardous waste to half. Dilution which increases the volume of waste, is now more common than segregations.
Firms dilute waste to lower pollutant concentration for discharge into a sewage treatment plant or directly into air or water, or to inject them more easily into deep wells. To save money, small electroplating firms after mix their organic waste with those containing metals and cyanide before dumping them in the sewer rather than treating them independently.The sewage treatment plant can degrade the organic waste but the metal of cyanide accumulates in the plants sludge. A cross media approach designed to avoid this problem might require the discharger to segregate and treat separately the heavy metals and cyanide to prevent their release.
Once wastes are segregated, they are easy to recycle or treat. As a better understanding of nature and extent of Cross media problem is gained, society will also find better ways to improve both the effectiveness and efficiency of pollution control policies.
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