Question

PREFACE ON TYPE OF POLLUTION

Answer 1

Environmental pollution is one of the greatest challenges that the world is facing. Once released into the environment, many pollutants may persist for long time, poisoning humans through inhalation, ingestion, skin absorbtion and other potential routes. Over the last several decades, there has been increasing global concern on their potential public health impacts. The World Health Organization (WHO) estimates that nearly a quarter of human-involved diseases today are attributable to prolonged exposure to environmental pollution. These environment-related diseases are mostly latent, and not easily identified. Chemical pollution originated from human activities has been suspected as the major culprit to be blamed for. There have been a number of notable environment pollution incidents, such as Minamata disease in Japan, the Great Smog in London, Bhopal disaster in India etc., resulting in severe detrimental effects on human health. Besides the individual severe pollution incidents which happened locally, the more urgent worries are becoming focused on those which may cause worldwide deleterious impacts, like environmental endocrine disrupting substances (EDs). Due to the complexities of environmental insult from the exposure latency, mixture of chemicals, dose-response dynamics and long-term latent effects, the negative health outcomes of EDs may be transmitted to further generations through germline epigenetic modifications, and cause declination in populations of diverse species, including human beings. The adverse effects, associated with the reproductive and developmental system, are consequently the key concerns about environmental pollution.







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