
What is Barium? Barium is a naturally occurring alkaline earth metal found in the Earth’s crust. Because it is highly reactive, barium is never found in its pure form in nature—it always exists as ...

What is Atrazine? Atrazine is a synthetic herbicide widely used in agriculture to control weeds in crops such as corn, sugarcane, sorghum, pineapples, and other row crops. It remains one of the mos...

What is Arsenic? Arsenic is a toxic metalloid that occurs naturally in the earth’s crust. It can be found in rocks, soil, and groundwater across many parts of the world, including Australia, the Un...

What are PFAS? Per- and polyfluoroalkyl substances (PFAS) are a group of more than 9,000 synthetic chemicals used since the 1940s in consumer and industrial products because they resist heat, water...
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