AL has various meanings in the Environment category. Discover the full forms, definitions, and usage contexts of AL in Environment.
The action level of formaldehyde was determined as 0.5 ppm.
EnvironmentAluminium or aluminum is a chemical element with symbol Al and atomic number 13. It is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. By mass, aluminium makes up about 8% of the Earth's crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below.
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