WHAT IS SELENIUM AND HOW IS IT USED?
Selenium is a metal that can be found in natural deposits as well as ores that contain other elements. Electronic and photocopier components are the most common uses for selenium compounds, but they're also found in glass, pigments, rubber, metal alloys, textiles, petroleum, medical therapeutic agents, and photographic emulsions.
WHY IS SELENIUM BEING REGULATED?
The Safe Drinking Water Act was passed by Congress in 1974. This statute mandates that the Environmental Protection Agency (EPA) defines permissible levels of contaminants in drinking water that cause or may cause health concerns. Maximum Contaminant Level Goals are non-enforceable values based primarily on potential health concerns and exposure.The MCLG for selenium has been set at 0.05 parts per million (ppm) because the Environmental Protection Agency (EPA) thinks that this level of protection will not result in any of the potential health issues listed below.
EPA has established an enforceable standard called a Maximum Contaminant Level (MCL) based on this MCLG (MCL). MCLs are established as close as feasible to MCLGs, taking into account public water systems ability to detect and remove contaminants using appropriate treatment technology.Because EPA thinks that, given current technology and resources, this is the lowest level to which water systems may reasonably be required to remove this pollutant if it occurs in drinking water, the MCL has been set at 0.05 ppm.
The National Primary Drinking Water Rules, which ensure that these standards are met, are the name of these drinking water standards and regulations. These rules must be followed by all public water supplies.
HOW WILL I KNOW IF SELENIUM IS IN MY DRINKING WATER?
If selenium levels surpass the MCL, the system is required to warn the public via newspapers, radio, television, and other media. To avoid major public health threats, additional measures, such as supplying alternative drinking water supplies, may be required.
WHAT ARE THE HEALTH EFFECTS?
Short-term: At low levels, selenium is an essential nutrient. When people are exposed to selenium at levels over the MCL for short periods of time, EPA has discovered that it can cause hair and nail changes, as well as harm to the peripheral nervous system, weariness, and irritability.
Long-term: exposure to selenium at levels above the MCL has the potential to induce hair and fingernail loss, as well as damage to the kidney and liver tissue, as well as the neurological and circulatory systems.
HOW MUCH SELENIUM IS PRODUCED AND RELEASED TO THE ENVIRONMENT?
In 1985, production was estimated to reach 429,515 pounds. During the combustion of coal and petroleum fuels, as well as the smelting and refining of other metals, selenium compounds are released into the air.
HOW WILL SELENIUM BE DETECTED IN AND REMOVED FROM MY DRINKING WATER?
The selenium regulation went into effect in 1992. Between 1993 and 1995, the EPA required your water supplier to collect and analyse water samples once to see if selenium levels were above 0.05 ppm. If the pollutant is present above this threshold, the system must continue to monitor it every 3 months.
NETSOL’s activated alumina backwashing filter will remove selenium from all of the water that enters the home or business. A point of entry (POE) filter using anion-exchange resin in the chloride for is also available from NETSOL. Sodium or potassium chloride is used to rejuvenate the system. A NETSOL Water reverse osmosis system is suggested for domestic drinking water purification. To identify which filtering system is best for your application, we recommend speaking(+91-9650608473) with a NETSOL technical support specialist. We are one the leader of commercial RO plant manufacturers in India.