On the other hand, low indices represent groundwater is better protected from contaminant leaching by the natural environment.
Solutions of chemical agents should be kept in closed containers, well protected from air contaminants and provided with a facility which releases a constant required amount.
Toenail samples are convenient to collect and store, grow more slowly than hair, are more protected from external contaminants, and represent longer-term exposures than blood or urine (Slotnick and Nriagu 2006).
When protected from light, external contaminants, and extraneous contact, NR-adsorbed PS samples were found to be stable for several weeks and could be safely stored for weeks before experimentation.
The obtained results show that the principal aquifer is naturally protected from the source of contaminants occurs in the surface, where the class of very low and low vulnerability classes extend over a large area of the study area (about 99%%).
As sanitation became a mania, early kitchen design took its cue from the scientist's laboratory, with its cabinets and shelves and drawers to protect instruments from contaminants and its clean white surfaces.
The data on them cannot be destroyed by power outages or magnetic disturbances, the disks themselves are relatively impervious to physical damage, and unlike magnetic disks and tapes, they need not be kept in tightly sealed containers to protect them from contaminants.
Moreover, they charge that the U.S. government -- including the U.S. Food and Drug Administration, the agency empowered to protect Americans from contaminants in their food -- has been acting as a rubber stamp for the biotechnology industry, doing its bidding.
MEDIA ADVISORY World Breastfeeding Week 1 1 – 7 August 2008 Breast milk protects infants from contaminants and harmful ingredients found in alternative products.
