These levels in the air are not dangerous and will not cause negative health effects. You cannot rely on your nose to tell you how much hydrogen sulphide gas is present! Hydrogen sulphide levels can change based on a number of factors such as fluctuations from the source i. Exposure to low concentrations of hydrogen sulphide may cause irritation to the eyes, nose, or throat.
It may also cause difficulty in breathing for some people with asthma. Low concentrations of hydrogen sulphide may cause headaches, poor memory, tiredness, and balance problems. Brief exposures to high concentrations of hydrogen sulphide greater than ppm can cause a loss of consciousness. In most cases, the person appears to regain consciousness without any other effects. However, in some individuals, there may be permanent or long-term effects such as headaches, poor attention span, poor memory, and poor motor function.
Even at these low levels, water will become aesthetically unpleasant and most users will avoid drinking the water at that time. The odor may be more noticeable when hot water is run as heat forces the gas into the air which may cause the odor to be especially offensive when showering.
This can occur when water comes into contact with organic matter or with some minerals, such as pyrite. The situation mostly occurs as groundwater filters through organic material or rocks. Water containing hydrogen sulfide can have an odor that is objectionable and the water may taste really bad , but generally the water is not harmful to health. However, odors can be caused by other constituents as well, so you may want to call your local Health Department and mention the odor to them.
The best way to find out what is in your water is to have the water tested by a state certified laboratory. A list of these labs is available from the U. Your local county Extension office may also offer water testing.
If the Problem is in Groundwater Installing home water treatment or drilling a new well in a different formation are both options. The gas is trapped by the carbon until the filter is saturated. Since the carbon filter can remove substances in addition to hydrogen sulfide gas, it is difficult to predict its service life.
Some large carbon filters have been known to last for years, while some small filters may last for only weeks or even days. This type of treatment is often used to treat iron problems in water. The device consists of manganese greensand media, which is sand coated with manganese dioxide.
The hydrogen sulfide gas in the water is changed to tiny particles of sulfur as it passes through the filter. The filter must be periodically regenerated, using potassium permanganate, before the capacity of the greensand is exhausted. Aeration and filtration. Continuous chlorination and filtration. Ozonation and filtration. Should I test my well water for anything besides hydrogen sulfide? Minnesota Department of Health recommends testing for: Coliform bacteria every year and any time the water changes in taste, odor, or appearance.
Coliform bacteria can indicate that disease-causing microorganisms may be in your water. See Bacterial Safety of Well Water. Nitrate every other year. Bottle-fed infants under six months old are at the highest risk of being affected by levels of nitrate higher than 10 milligrams per liter in drinking water. See Nitrate in Well Water. Arsenic at least once. About 40 percent of wells in Minnesota have arsenic in the water. Drinking water with arsenic in it for a long time can contribute to reduced intelligence in children and increased risks of cancer, diabetes, heart disease, and skin problems.
See Arsenic in Well Water. Lead at least once. The well and water system may have parts that have lead in them, and that lead can get into drinking water.
Lead can damage the brain, kidneys, and nervous system. Lead can also slow development or cause learning, behavior, and hearing problems. See Lead in Well Water Systems.
Manganese before a baby drinks the water. High levels of manganese can cause problems with memory, attention, and motor skills. It can also cause learning and behavior problems in infants and children.
See Manganese in Drinking Water. Consider testing for: Volatile organic chemicals if the well is near fuel tanks or a commercial or industrial area.
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