Sentence examples for hazardous concentrations from inspiring English sources

This chapter deals with containment, dilution and removal of potentially hazardous concentrations of explosive gaseous mixtures in hazardous modules, and the adequate segregation of hazardous area ventilation exhausts from ventilation and engine intakes.

This extremely conservative model, which ignores inhomogeneity in the mean wind and turbulence fields, also predicts possible hazardous concentrations up to several hundred meters downwind from a maximal release.

All the hazardous concentrations in the leachate are far lower than 100 times of those of the drinking water standards, indicating the foamed recycled glass as a non-hazardous material.

The results showed hazardous concentrations of Pb (1525 mg/kg), Ba (1312 mg/kg), Sb (128 mg/kg), Cd (36 mg/kg), As (118 mg/kg), Zn (1154 mg/kg) and Co (263 mg/kg) exceeded the Swedish guidelines of contaminated soil.

Exposure to sodium cyanide can be quickly fatal, the CDC says; hydrogen cyanide gas released by sodium cyanide has a distinctive odor described by some people as bitter almond or a musty "old sneakers smell," but many people cannot detect it and the odor does not provide adequate warning of hazardous concentrations.

Recommendations arising from this work cannot, therefore, be applied to situations where cyanobacterial exotoxins are found to be in possibly hazardous concentrations.

hazardous concentration for protection of 95% of the species.

If there are sufficient toxicity data for species in different taxonomic groups or data on different species within a relevant (i.e., sensitive) group, a SSD [95, 96] can be developed and used for the calculation of the HC5 (hazardous concentration for protection of 95% of the species).

The current available data on soil ecotoxicity allow one to calculate the chronic terrestrial HC50EC50 (hazardous concentration affecting 50% of the species at their EC50 level, i.e. the level where 50% of the individuals of the species are affected) of nine metals and metalloids (As III) or (V), Be(II), Cr III) or (VI), Sb III) or (V), Pb II), Cu II), Zn II) and Ni II)).

It is therefore critical to maintain sufficient oxygen supply while keeping hazardous gas concentrations from diesel emission below the maximum allowable level.

The objective of this study is to propose and to examine various innovative ventilation strategies to control oxygen and hazardous gas concentrations in underground mine to ensure safety, productivity and cost related to energy consumption.