GAC is a miracle filter media.



GAC (granular activated carbon)

GAC or granular activated carbon is a highly adsorbent material used to remove contamination from water.

GAC has been known as a miracle filter media by many researchers. It has a unique ability to remove offensive tastes, odors, color, chlorine as well as volatile organic chemicals, pesticides and trihalomethanes (a group of suspected carcinogens).

Briefly, granular activated carbon acts like a sponge, with a large surface area to absorb contaminants in the water. The surface area of one pound of granular activated carbon is equal to 125 acres.

Many scientists believe this is a result of an affinity that these chemicals have for carbon because of Van Der Waal forces (kinda technical for me.)

GAC is the preferred treatment and method recommended by the EPA to remove a host of potentially hazardous and possibly carcinogenic chemicals from our drinking water.

A partial list of chemicals that are reduced or removed by GAC are:

Organic MCL Source/Industrial occurrence Health effect
 Chlorobenzene 0.1 Used as a solvent for paint and metal manufacturing. Also used in insecticides. Affects nervous system, kidneys and liver.
CIS-1,2  Dichloroethylene 0.07 Used as an industrial solvent in the manufacturing of dyes, perfumes  and lacquers Affects liver, and a nervous and circulatory systems. Probable cause of cancer.
Dibromochloropropane 0.0002 Soil fumigant on soybeans, and cotton. Canceled in 1997. Cancer
Dioxin 3E-08 Chemical production by-product; impurity in herbicides. Affects lungs, liver and kidney. Probable cause of cancer.
Epichlorohydrin 0 Used in epoxy resins and coating, and in flocculants. Affects nervous system, kidney and liver.
Ethlbenzene 0.7 Used in the manufacture of gasoline, insecticides and  asphalt Probable cause of cancer
Ethylene Dibromide 0.00005 Used as a gasoline additive and soil fumigant. Affects nervous system, kidneys and liver.
Monochlorobenzene 0.01 Used in manufacture of pesticides and as a metal cleaner and industrial solvent. Cancer
PAHs 0.0002 Coal tar coating, burnings organic matter, volcanoes, fossil fuels. Cancer
Phthalate  0.006 PVC and other plastics. Affects skin and liver. Causes nausea. Probable cause of cancer.
(di(2-ethylhexyl))
Polychlorinated  0.0005 Used in electrical transformers. Affect nervous system, kidneys and liver.
Biophenyts (PCBs)
Styrene 0.01 Used in manufacturing plastic, resins and foams. Affects nervous system. Probable cause of cancer and anesthesia
Tetrachloroethylene 0.005 Used in dry cleaning and as a degreasing agent for metals. Also used for manufacturing rubber, waxes, paints and inks. Affects nervous system, liver and kidneys. Causes narcosis. Irritant to respiratory system.
Toluene 1 Used in gasoline, paint thinners, lacquers and adhesives. Cancer
  0.01 Formed when water containing organic matter is treated with chlorine. Effects nervous system and muscles. Probable cause of cancer.
Total Trihalomethanes 
(THM's):
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
 
1,1 Dichloroethylene 0.007 Used in manufacturing dyes, plastic, perfumes, paints and adhesives Affects kidneys and liver and can cause nausea.
1,1,2-Trichloroethane 0.005 Solvent in rubber products, chemical production waste. Kidney, liver, nervous system damage
1,1,1-Trichloroethane 0.02 Used in manufacturing of pesticides, plastic and metals. Affects nervous system. Causes narcosis and probably cancer.
1,2 Dichlorobenzene 0.6 Used in the manufacturing of fumigants, insecticides, waxes, resins, rubber and asphalt Affects lungs, liver and kidneys.
1,2 Dichloroethane 0.005 Used in the manufacturing of gasoline, paint, varnish, metal degreasers and insecticide fumigants Damage kidney and liver can cause nausea
1,2 Dichloropropane 0.005 Used in insecticide fumigants, dry cleaning fluids and in manufacturing of resins, waxes and petroleum products Affects lungs, liver and kidneys.
1,2,4-Trichlorobenzene 0.07 Herbicide production; dye carrier. Liver, kidney damage
1,4 Dichlorobenzene 0.075 Used in moth repellent, germicides, pesticides and soil fumigants. Affects nervous system, liver and kidneys. Probable cause of cancer.
Acrytamide 0 Flocculants used in sewage and wastewater treatment. Affect nervous system, probable cause of cancer.
Adipates 0.4 Synthetic rubber, food packaging, cosmetics. Decreased body weight; liver and testes damage.
Benzene 0.005 Used in fuels and as a solvent in manufacturing pharmaceuticals, plastics, pesticides and paints. Often traced to leaking underground storage tanks. Leukemia, anemia and possibly cancer
Trans-1,2  0.1 Used as an industrial solvent in the manufacturing of dyes, perfumes, lacquers and rubber. Affects liver, and nervous and circulatory systems
Dichloroethylene
Trichloroethylene 0.1 Used in dry cleaning and as a degreasing agent. Also used for manufacturing rubber, paints, adhesives, resins, oils and fumigants. Irritates body tissue. Affects nervous system. Probable cause of cancer.
Vinyl Chloride 0.005 Used as a plastic adhesive and refrigerant. The main component of PVC pipe Affects nervous system. Probable cause of cancer.
Xyienes 0.002 Used in manufacturing paint, ink, petroleum and detergents. Affects nervous system, kidneys, lungs, liver and mucous membranes.


Following is a list of pesticides that GAC can removes from your drinking water:

Pesticides and Herbicides that GAC will remove


Pesticides MCL Source/Industrial occurrence Health effect
  10 Agricultural insecticide Affects nervous system, respiratory system, kidneys and liver. Probable cause of cancer.
Aldicarb 0.003
Aldicarb Sulfone 0.002
Aldicarb Sulfoxide 0.004
Carboturan  
   
Chlordane 0.04 Used on rodents, insects, birds. Restricted since 1980. Affects nervous system, respiratory system, kidneys and liver. Probable cause of cancer
Endrin 0.0002 Agricultural insecticide. Liver, kidneys, heart damage.
Heptachlor 0.0004 Agricultural insecticide. Converts to expoxide by soil and water organisms Affects nervous system, respiratory system, kidneys and liver. Probable cause of cancer.
Heptachlor Expoxide 0.0002 Pesticide production by-product. Affects nervous system, respiratory system, kidneys and liver. Probable cause of cancer.
Hexachlorobenzene 0.001 Pesticide production by-product. Cancer
Hexachlorocyclop -entadiene 0.05 Agricultural insecticide. Cancer
Lindane 0.0002 Agricultural insecticide. Affects nervous system, respiratory system, kidneys and liver. Probable cause of cancer.
Methoxychlor 0.04 Insecticide used on apples, potatoes, tomatoes. Affects nervous system, respiratory system, kidneys and liver. Probable cause of cancer.
Oxamyl   Agricultural insecticide. Kidney damage.


Lastly a list of herbicides that GAC will remove from your families drinking water:
Herbicides MCL Source/Industrial occurrence Health effect
  0.07 Agricultural  herbicides Affect nervous and reproductive system, respiratory system, kidneys, liver and heart. Causes anesthesia. Probable cause of cancer.
2,4-D 0.05
2,4,5-TP (silver) 0.002
Alachlor 0.003
Alrazine  
   
Dalapon 0.2 Herbicide used on orchards, beans, coffee, lawn, roads and railway. Liver, kidney damage.
Dinoseb 0.007 Runoff of herbicide from crop and non crop applications. Thyroid, reproduction organ damage.
Diquat 0.02 Runoff of herbicide on land and aquatic weeds. Liver, kidneys, eye effects.
Endothall 0.01 Used on crops, land and aquatic weeds. Liver, kidney and gastrointestinal damage.
Glyphosphate 0.7 Used on grass, weeds, brush Liver, kidney damage
Pentachlorophenol 0.001 Agricultural herbicide and wood preservative. Affects nervous and reproductive system, respiratory system, kidneys, liver and heart. Causes anesthesia. Probable cause of cancer.
Picloram 0.5 Used on broadleaf and woody plants. Kidney, liver damage.
Simazine 0.004 Used on grass sod, some crop, aquatic algae. Cancer.

Source: Water Technology, Directory Issue / 1995



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