Water pollution
Water pollution
Water pollution Greece, Spain and
Water pollution
Greece, Spain and Germany have the cleanest coastal waters.
The Sarno (Italy) is the most polluted river in Europe
Asian rivers are the most polluted in the world.
Lithuania and Estonia have the dirtiest coastal waters.
Man is a complex being; he makes the deserts bloom and lakes die
"Man is a complex being; he makes the deserts bloom and lakes die.“ Gil Stern
Pesticides are carried in rainwater from farm fields, suburban lawns, or roadside embankments into creeks.
Results:
affect and damage the nervous system;
cause liver damage;
damage DNA and cause a variety of cancers;
cause reproductive and endocrine damage;
cause other acutely toxic or chronic effects.
Society, my dear, is like salt water, good to swim in but hard to swallow
"Society, my dear, is like salt water, good to swim in but hard to swallow." — Arthur Stringer, author, The Silver Poppy
Mercury comes through air pollution from industrial plants. In the water, the elemental mercury is converted to methylmercury by certain bacteria, after which it moves into food through a fish.
Young children and fetuses are most at risk because their systems are still developing.
Mercury causes neurological problems, including slower reflexes, learning deficits, delayed or incomplete mental development, autism, and brain damage.
Mercury for adults is also a problem, causing:
central nervous system effects like Parkinson's disease, multiple sclerosis, and Alzheimer's disease;
heart disease;
death or irreversibly damaging areas of the brain.
PCBs, Dioxins, and Other POPs PCBs polychlorinated biphenyl – dioxins - poisonous chemical by-products of the manufacture of certain herbicides and bactericides
PCBs, Dioxins, and Other POPs
PCBs polychlorinated biphenyl –
dioxins - poisonous chemical by-products of the manufacture of certain herbicides and bactericides
POP - persistent organic pollutants tend to collect in the fatty issues of animals.
Control of water pollution In urban areas, domestic sewage is typically treated by centralized sewage treatment plants
Control of water pollution
In urban areas, domestic sewage is typically treated by centralized sewage treatment plants.
Plants are designed to control conventional pollutants(обычные загрязнительные вещеста)
Well-designed systems can remove 90% or more of these pollutants.
Industrial Wastewater Treatment
Industrial Wastewater Treatment
Some of these facilities remove the toxic components, and then send the partially-treated wastewater to the municipal system.
Dissolved air flotation system for treating industrial wastewater.
Agricultural Wastewater Treatment
Agricultural Wastewater
Treatment
Urban runoff (stormwater-ливневая вода)
Urban runoff (stormwater-ливневая вода)
Effective control of urban runoff involves reducing flow of stormwater, as well as reducing pollutant discharges.
Local governments use techniques (BMPs-best management practices) to reduce the effects of urban runoff : filters, clarifiers, biological reactors
Thank YOU =) turn off faucet while cleaning teeth
Thank YOU =)
turn off faucet while cleaning teeth
Think about Water!!!
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