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Pollution and Pollution Control Ô nhiễm đã trở thành một trong những thường xuyên nhất nói về của tất cả các vấn đề môi trường thế giới lớn và được nêu ra, trong nhiều khía cạnh, nó thường có thể vẫn là một trong ít nhất là hiểu. Từ có một chiếc nhẫn quen thuộc với nó và chắc chắn khái niệm ô nhiễm đã bước vào ý thức rộng lớn hơn như một phần quan trọng đang phát triển 'xanh' của xã hội nói chung. Tuy nhiên, tính chất đa dạng của các chất có khả năng gây ô. | 4 Pollution and Pollution Control Pollution has become one of the most frequently talked about of all environmental problems by the world at large and yet in many respects it can often remain one of the least understood. The word itself has a familiar ring to it and inevitably the concept of pollution has entered the wider consciousness as a significant part of the burgeoning greening of society in general. However the diverse nature of potentially polluting substances can lead to some confusion. It is important to realise that not all pollutants are manufactured or synthetic that under certain circumstances many substances may contribute to pollution and that perhaps most importantly for our purposes any biologically active substance has the potential to give rise to a pollution effect. This inevitably leads to some difficulty in any attempt at classifying pollutants since clearly they do not represent a single unified class but rather a broad spectrum. While it is possible as we shall discuss shortly to produce a means of systematic characterisation of pollutant substances though useful for a consideration of wider contamination effects this is an inherently artificial exercise. It is therefore perhaps more useful to begin the discussion with a working definition. The UK Environmental Protection Act EPA 1990 statutorily offers the following Pollution of the environment means pollution of the environment due to the release into any environmental medium from any process of substances which are capable of causing harm to man or any other living organisms supported by the environment. EPA Introduction . .the escape of any substance capable of causing harm to man or any other living organism supported by the environment EPA Section 29 Part II In essence then pollution is the introduction of substances into the environment which by virtue of their characteristics persistence or the quantities involved are likely to be damaging to the health of humans other animals and
