Contaminants come from many segments of our fast-paced, industrial society. The following table shows some common contaminants, what they are purported to do and their sources.

Type

Contaminant

Possible Effect

Source

 

Microbiological

Coliform and other bacteria

Dysentery, Typhoid fever, and Cholera

Human and Animal fecal matter

 

Giardia lambia

Gastroenteric disease

Human and Animal fecal matter

 

Legionella

Legionnaire's disease

Surface waters, Water heaters

 

Turbidity

Interferes with disinfection, filtration

Erosion, Soil runoff and discharges

 

Inorganic Chemicals

Asbestos

Cancer

Asbestos cement in water systems

 

 

Arsenic

Skin and Nervous system toxicity

Pesticide, Industrial Waste, Smelting

 

Barium

Circulatory system effects

Epoxy sealants, Spent coal

 

Cadmium

Kidney effects

Batteries, Paints

 

Fluoride

Skeletal and Dental damage

Fluoridated water, Fertilizer, Aluminum

 

Lead

Kidney and Nervous system damage

Lead pipe and Lead-based solder

 

Mercury

Kidney and Nervous system disorders

Crop runoff, Batteries

 

Nitrate

Blue baby syndrome (methemoglovinemia)

fertilizer, Sewage, Animal waste

 

Selenium

Liver damage

Smelting, Coal/Oil combustion

 

Organic Chemicals

Benzene

Cancer

Fuel, Drugs, Paint, Pesticides

 

Carbon Tetrachloride

Cancer

Cleaning Solvents

 

Endrin

Liver,Kidney and Heart damage

Pesticide on insects, rodents and birds

 

Lindane

Liver, Kidney, Nervous, Immune and Circulatory System damage

Insecticide on cattle, cotton and soybeans

 

Methoxychlor

Growth, Liver, Kidney, Nerve effects

Insecticide for fruits, livestock and pets

 

Radon

Cancer

Radionuclides

 

Total Trihalomethanes

Cancer

Surface water treated with Chlorine

 

Toxaphene

Cancer

Insecticide on cattle, cotton and soybeans

 

Tetrachloroethyle ne

Cancer

Dry cleaning materials waste, Solvents

 

Vinyl Chloride

Cancer

PVC pipe; Solvent breakdown