impact of water pollution on animal health
TRANSCRIPT
WELCOME
IMPACT OF WATER POLLUTION ON ANIMAL
HEALTH-
Guided by:-Dr.ManimaranScientist,LPM
Prepared by:-Mukesh kumar gauravM.V.Sc 1st year
Overview:- •Types of water pollution •Sources of water pollution •Causes of water pollution •Effect of water pollution •Conclusion
Water pollution is defined as the alteration of physical, chemical and biological characteristics of water resulting in harmful effects on life systems
Water pollution is a major global problem. It has been suggested that it is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily.
Water pollution accounts for 80% of all infectious diseases.
Types of water pollution : 1. Ground water pollution
2.Surface water pollution
3. Lake, River and Sea water pollution.
SOURCES OF WATER POLLUTION:- (A)Natural Sources: 1.Eutrophication process 2.Floods (B)Man made sources: 1. Sewage and domestic wastes 2. Toxic metals 3.Industrial effluents 4.Agricultural discharges 5.Detergents, pesticides
Based on their origin 1.Point sources 2.Nonpoint sources
Causes of water pollution
1. Sewage 2. Nutrient 3.Chemical waste -organic and inorganic 4.Radioactive waste 5.oil pollution 6.plastics 7.Alien species 8.Pathogen -coliform bacteria Burkholderia pseudomallei Cryptosporidium parvum Giardia lamblia Salmonella viruses Parasitic worms (helminths). 9.Thermal pollution
Effect of water pollution:- on ecosystem
on animal health
on human health
Effects on Animal Health-• Large scale death of aquatic and terrestrial animalsReduced reproduction rateIncreased incidence of diseasesImbalances created in secondary food chainsAccumulation of bioaccumulative and non-
biodegradable pollutants in animal bodies.Some organochlorine pesticides (like DDT, BHC,
Endrin) are known for bioaccumulative and biomagnifiable characters.
Bio magnificationDue to bioaccumulative characters, these
pollutants pass through the food chain and food web. While passing through the organisms, the concentration of pollutants gets increased. This is called bio magnifications. For e.g., 0.5 ppm DDT in grasses gets magnified to 2ppm in sheep. It may be magnified to 10 ppm in human beings who eat such polluted mutton.
Some organochlorine pesticides cause health hazards like impotence, cancerous tumors beyond a threshold limit of accumulation
Effect of biomagnification
- Health disorders due to presence of toxic chemicals like DDT.
- Hereditary problems due to manipulation of genetic material.
- Danger of extinction of any particular group of animals or birds.
- Contamination of water reservoirs. - Effect on specific food chains in nature.
Effects on acidrain animals and birds. All living organisms are interdependent on each
other. If a lower life form is killed, other species that depended on it will also be affected. Every animal up the food chain will be affected. Animals and birds, like waterfowl or beavers, which depended on the water for food sources or as a habitat, also begin to die. Due to the effects of acid rain, animals which depended on plants for their food also begin to suffer. Tree dwelling birds and animals also begin languish due to loss of habitat.
Water borne diseases
Sr.no. Disease Pathogen
01 Bacterial
Typhoid Salmonella typhi
Cholera Vibrio cholerae
Paratyphoid Salmonella typhi
Gastroenteritis Enterotoxigenic E.coli
Bacterial dyssentery E.coli
02 Viral
Infectious hepatitis Hepatitis A-virus
Poliomycetis Polio virus
Diarrhoea Rota virus
C0nt…..
Sr.No. Diseases Pathogen
03 Protoazoans
Amoebic dysentery/ Other Intestinal illness
E.hystolitica/Giardia& cryptosporidium sp.
Sleeping sickness Trypanoma sp.
Malaria Plasmodium sp.
04 Helminthes
Schistosomiasis Schistosoma sp.
Guinea worm Guineaworm
Hookworm Hookworm,Ascariasis
CONCLUSION:-
Water is life if it is pure and wholesome but it becomes detrimental to life if it get polluted.
Human activity is mainly responsible for water pollution
Water pollution leads to disturb normal health of the animal and ultimately decreases the production .