Tag Archive for ecology

Causes Of Pollution Of Surface Waters

1) Dropping a reservoir of untreated or inadequately treated sewage from industrial enterprises, urban and rural economies, 2) Residues of fertilizers and pesticides that are washed away by melt and rain waters. 3) Production and widespread use of par, particularly in the detergent causes the assignment of the wastewater in many water bodies, including at the source of household security. The main danger – not irrevocability of use, and pollution of natural waters by industrial effluents. The physical condition of pollution share: insoluble, colloidal, soluble. Of nature: mineral, organic, bacterial, biological. Minerals – sand, clay particles, min.

salt, acid, meadows, etc. Organic – 1) Plants: the remains of plants (vegetables, cereals, oil). For even more analysis, hear from Sam Lesser. 2) Animals: Physiological. Private. animal and human remains animal tissues and other bacterial and biological pollution – domestic waste water and waste water of some indus.

enterprises (leather factories processing of wool, fur production, biofabrikaty, the n-th microbiological industry) should be noted that in the water biological pollutants are particularly important ahead of the danger even chemical. This happens when the water becomes a vital environment for pathogens. With it through the air (most often microdrops saliva or water) are transferred to a few diseases, and water – they are the majority. Waterborne bacterial diseases are transmitted, such as cholera, typhoid, bacillary dysentery, viral infections: hepatitis A, polio, and dysentery, caused by the simplest – dysenteric amoeba and shistosomiaz, which is caused by parasites. Increased biological hydrosphere pollution due to anthropogenic influences can be attributed entirely to the "revenge" of nature, to counteract the effects of excessive intervention by the very large number of people in the surrounding environment. In support of this assessment of the situation can cause the following facts: Anthropogenic changes in the physical and chemical conditions of the environment has already led to several cases of propagation forms of bacteria with the transformation of a much pathogens. Abroad widest publicity gained the appearance of fundamentally new "Legionnaires' disease, caused by a mutation in a common inhabitant of wetlands, as legionela. Staff gentile houses around the world have to cope with illness caused by childbirth blue pus bacilli. Based on common law , experts say that the phenomenon of biological environments has only begun. In the future the situation deteriorate if people's behavior does not change

Coral Reefs And Diseases

Studying coral reefs, the scientists found that the number of different diseases of corals, the smaller the greater diversity of fish living near these reefs. Reefs are found in protected waters have a healthier ecosystem, than reefs where fishing is allowed. In the course of his research team found only one species of fish, which has a negative impact on the coral – it butterfly fish, which feed on hard corals and only occasionally caught by fishermen. Study by researchers in handy – for now, coral reefs are rapidly disappearing from the face of the earth. Corals are dying because of pollution, global warming, species extinction animals needed to sustain the existence of the reef community.

In addition, the major cause of death of coral reefs are a variety of coral diseases. What exactly causes the spread of diseases in Reef – until recently for scientists remained a mystery. Polluting air particles can 'travel' from one continent to American scientists have found that air-pollutant emissions have a negative impact on the ecology of another country far away from their 'homeland'. Harmful air particles that pollute environment, can 'travel' across the oceans from different continents – from Asia to America and from America to Europe. Although Air quality in one country are almost always determined by the dominant number of local industrial and domestic emissions, a significant impact on the environment can render and external sources contamination came from other continents. Thus, the global environment has no national boundaries. That is, greenhouse gas emissions in one country can adversely affect human health and ecosystems, and other States, despite the considerable distances.