•DOMESTIC USES OF WATER AND ITS DISPOSAL TO DRAINAGE
Major domestic uses of water
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It is the major consumer of water in the home, using around 10% of total household water
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Of all water consumed in the home, about 15-20% is used in the laundry.
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The bathroom and toilet use nearly 40% of all water in the home.
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Washing a car and cleaning driveways traditionally use a lot of water.
Household products in water pollution
Many household products like detergents, furniture polish, disinfectants, deodorizers, paints, stain removers, and even cosmetics release chemicals that may be harmful to human health as well as cause environmental concerns. Insecticides, pesticides, weed killers, and fertilizers are another source of household pollution.
RAINWATER IN THE STORM DRAINAGE SYSTEMS. MAJOR POLLUTANTS.
•Atmospheric pollutants
The six pollutants are ozone, carbon monoxide, nitrogen dioxide, particulate matter, sulfur dioxide and lead.
These pollutants can injure health, harm the environment, and damage property. The U.S. Environmental Protection Agency (EPA) calls these air pollutants "criteria pollutants". The EPA has regulated these six pollutants by first developing health-based standards (primary standards) intended to protect our health. A geographic area that meets or does better than the primary standard is called an attainment area; areas that do not meet the primary standard are called nonattainment areas.
•Urban pollutants
Runoff water from buildings, streets and sidewalks carries many pollutants including: sediment, nutrients, bacteria, oil, metals, chemicals, road salt, pet droppings and litter. Some businesses and industries don't dispose of waste properly and dump pollutants directly into waterways. Wetlands are often filled in with dirt and concrete and natural streams are redirected by man-made channels. This takes away nature's ability to filter out contaminants before they end up in larger bodies of water.
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