minimal risk level

An Agency for Toxic Substances and Disease Registry (ATSDR) estimate of daily human exposure to a hazardous substance at or below which that substance is unlikely to pose a measurable risk of adverse, noncancerous effects. Minimal risk levels are calculated over a specified time period (acute, intermediate or chronic), and are derived when reliable and sufficient data exist to identify the target organ(s) of effect or the most sensitive health effect(s) for a specific duration via a given route of exposure (e.g., inhalation or oral).

References in periodicals archive

Minimal risk levels (MRL) and cancer classification for BTEX compounds and whole products are summarized in Table 2.

Determination of oil and grease, total petroleum hydrocarbons and volatile aromatic compounds in soil and sediment samples/Alieju ir riebalu, bendrojo naftos angliavandeniliu kiekio ir lakiosios organines frakcijos nustatymas dirvozemio bei dumblo pavydziuose

has estimated minimal risk levels (MRLs) for total dietary intake of arsenic dependent on arsenic species.

Arsenic consumption in the United States

The concentration of mercury equilibrates at about 7 [micro]g/[m.sup.3], an order of magnitude higher than the ATSDR's minimal risk level, but an order of magnitude less than the occupational exposure limits.

Assessing elemental mercury vapor exposure from cultural and religious practices

environmental Drinking 10 16 level in ppb (a) Protection Agency water (2010, 2011) Minimal risk level Agency for Toxic All food 0.3 N/A in [micro]g per kg Substances and beverages of body weight Disease Registry per day Method detection AmTest Water and 0.1 0.05 limit in ppb juices (a)ppb=parts per billion.

Arsenic and lead in juice: apple, citrus, and apple-base

EPA, 1989b); the Minimal Risk Level (ATSDR, 1992; ATSDR, 1993); and the lethal dose for humans (ATSDR, 1993).

Fluoride overfeed at a well site near an elementary school in Michigan. (Features)

To accomplish this, we will use the most up-to-date, science-based information available, including the new toxicological profiles recently released by the Agency for Toxic Substance for Disease Registry, which identify minimal risk levels for these chemicals.

Addressing the PFAS threat to drinking water

Minimal Risk Levels (MRLs) for Hazardous Substances.

Heavy metal contamination in a school vegetable garden in Johannesburg