According to experts, the four big metals are –
cadmium, lead, mercury and arsenic. These four alloys are probably the most
toxic ones that are found in the fields of commerce, science and the media. You
find them in our daily essentials, in some form or the other, and make big
headlines. For example, you’ll find lead in drinking water, lipsticks and
children’s toys. Methyl mercury in fish and arsenic in fruit juices have been
ruled the headlines of blogs, newspapers and magazines. Hence, lead testing in
beauty products and heavy metal testing in groceries are highly essential at
this point of time. Almost everybody is wary about these four heavy metals.
Cadmium
In the industrial sector,
cadmium is basically used for lowering the melting point of some metals. It is
also used in the manufacturing process of bearing alloys, for lowering the
level of fatigue and friction. However, it’s regarded as a highly toxic metal
for human beings; hence, its presence must be checked in the environment and
commodities that humans have exposure to. Generally, the amount should be
regulated to 4.1 ug/day intake.
Lead
This metal is highly
infamous, with its history dating back 7000 years. You’ll even find its name in
the book of Exodus. Just like any other metal, lead too is present in the
atmosphere via contamination of some kind. It’s present all throughout our air,
plants, soil, water, fuels and even paint.
Just like Cadmium, lead is also regarded poisonous for humans and
requires regulatory assessment. You find Lead in toys, plant products and other
commodities. It’s highly dangerous, so much so, that it can damage your central
nervous system. Only a NABL accredited metal testing lab
in Kolkata can detect its presence in food and cosmetics.
Arsenic
Previously, Arsenic worked
as a preservative for some animal food to increase egg production. Of late, arsenic has been found in food
items like brown rice items and fruit juice. A proper metal testing lab in Kolkata can detect its
presence in commodities and help you remain on the safe side.
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