The Pre-Research On The Benchmark Of Bacteriological Index Of Environmental Quality Standard In The Eight Lakes And Reservoirs In Northeast Region Of China

The microorganism in water most were no pathogenic, only a few were pathogenic. The human excrement polluted water, may contain pathogenic factor in water. Residents often through the way such as drinking, contact caused the outbreak dielectric water infectious diseases. The most common diseases including cholera, typhoid fever, dysentery, influenza viral hepatitis, cryptosporidium etc intestinal infection and schistosomiasis, giardia worm disease such as parasitic diseases. In order to guarantee the quality of water, should to test different types of water.Because pathogenic bacteria were little content in water, detecting steps complex, less time-consuming, So with a kind of bacteria can represent feces pollution is an intestinal pathogenic bacteria and viruses dangerous instructions bacteria was logical, in the method also feasibleInternational general pollution indicator bacteria including colonies total, total coliforms and fecal coliform, escherichia coli (E.c oli.), compared with perfringens enterococcus, Clostridium perfringens bacteria (Clostridium) etcChinese legal interface have 8 kinds:water infectious disease cholera, viral hepatitis, poliomyelitis, bacteria and amebic dysentery, typhoid and paratyphoid, leptospirosis, schistosomiasis, infectious diarrhea.The water pathogenic bacteria have the following kinds Salmonella bacteria genera (Salmonella), Shigella bacteria genera (Shigella), Escherichia coli, Vibrio E.c of Vibrio cholerae choleraic Vibrio anguillarum, mimicry, Vibrio parahaemolyticus vice hemolytic Vibrio (); Pseudomonas genera, gas form afterbirth fungus genera, etcResearch purposeKnow well each lake and reservoir health bacteriology pollution condition, thus enhancing monitoring management, prevent water biological pollution and improve the health of lake and reservoir, can better protect the surface water resources, it is one of the research significance of the subject.The eight lake and reservoir in northeast China, surface water hygiene index survey, grasps bacteria reliable and comprehensive skill data of different waters, simple for pollution control and evaluation, provide guidance and reference for disease control and prevention.Analysis the relationship between instructions bacterium of pathogenic bacteria and the instructions, this paper discusses the relationship between surface water for instructions of intestinal bacteria, and pathogenic pollution benchmark, and formulated as soon as possible in the surface water quality research standards of hygiene indexes bacteria, is this topic research significance flour.Research content and methodsField work:High flow period:2010.8 to 9:low water season:2010.11 to 12.Eight lake and reservoir (lakes Lai lake jingpohu, reach- and kunming lake, xingkai lake, the lake baiyangdian SongHua; reservoir-dahuofang reservoir, Liaoyang), peasants sampling reservoir In lakes and reservoirs fill area, a water area, the deep water area, shallow water and shore area 5 area is apart from water surface 0.3-0.5 m sampling for 10L, sampling volume. Water samples must within the 4h testingLaboratory workThrough testing (sewage, urban sewage and typical in surface waters) instructions bacteria, intestinal pathogen (salmonella, deputy hemolysis vibrio, e. coli O157:H7,) and observe their relationship with pathogenic bacteria pollutionAccording to the field investigation results of all kinds of bacteria, and combining with laboratory research results, using statistical techniques, and with reference to the existing instructions fecal coliform bacteria (data and SPSS software for all kinds of data in computer statistical data analysis, sure can indicate the new instructions surface water bacteriology pollution bacteria; On this basis, the reference surface water quality monitoring data, and state is determined primarily by statistical analysis, in China in the basic value of the surface water instructions bacteriaResearch resultsHigh flow period instructions bacteria were higher than low water season, total concentration of water colony, escherichia coli, enterococcus have significant differences; No significant differences in total coliforms significance.The northeast region of the lake and reservoir in High flow period exceed total coliform bacteria most, it can't be a source of drinking water. In low water season, the water quality achieve the secondary water, outlet water quality was obviously better than the High flow period water quality, it can reflect the extent of water pollution of pathogenic bacteria.The mutagenicity detected a water are enterococcus, visibility detection by the water pollution, enterococcus can be very good expression pathogenic pollution.Along with the increase of enterococcus, pathogenic bacteria detection rate shows ascendant trend, enterococcus can well reflect the extent of water pollution of pathogenic bacteriaTotal coliforms and Escherichia coli have highly significant positive correlation; Total coliforms and enterococcus have highly significant positive correlation; Escherichia coli and enterococcus have highly significant positive correlation. With the correlation of enterococcus pathogenic best ConclusionAccording to the above research conclusion, suggest surface adopt Escherichia coli, Enterococcus as index, and according to the pathogenic bacteria and puts forward corresponding detection limit of the proposal.