Maximum Contaminant Level (MCL)
Maximum Contaminant Level (MCL): The highest level of a contaminant that is allowed in drinking water. MCLs are set by the U.S. Environmental Protection Agency (EPA).
Glossary Category:
Maximum Contaminant Level Goal (MCLG)
Maximum Contaminant Level Goal (MCLG): The level of a contaminant in drinking water below which there is no known or expected risk to human health. MCLGs are set by the U.S. Environmental Protection Agency (EPA).
Maximum Residue Level (MRL)
Maximum Residue Level (MRL): The highest level of a pesticide residue that is allowed on food or feed crops. MRLs are set by the U.S. Environmental Protection Agency (EPA).
Mechanical Weed Control
Mechanical Weed Control: The use of physical methods, such as tilling, to control weeds.
meconium
Meconium:Meconium is the earliest stool of a newborn. It is thick, sticky, and tar-like, and usually appears within the first 48 hours after birth. It is composed of materials ingested during the time the baby spends in the womb, including skin cells, hair, amniotic fluid, and mucus. Meconium is sterile and does not contain bacteria.
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