Sentence examples for substance contaminating from inspiring English sources

The first expectoration was discarded to eliminate food debris and unwanted substance contaminating the sample that may cause analytical inaccuracy.

Enteritis is most commonly caused by the ingestion of substances contaminated with pathogenic microorganisms, such as Salmonella and Escherichia [ 7].

In one breathtaking sweep of bureaucratic understatement, the audit added this: "Since consumers have no easy way of protecting themselves against the residues of harmful substances in their food, it is important that the national residue program's controls be as robust as possible to prevent meat contaminated with harmful substances from reaching the kitchen table".

Although the U.S. military and many medical experts maintain that depleted uranium poses no significant threat to human health, in sufficient concentrations the substance can contaminate soil and water supplies.

But Litvinenko's death wasn't simply murder: it was the assassination in London of a British citizen, as he had become, using an imported radioactive substance that contaminated many other Britons too.

This means that different substances have contaminated the surfaces, probably in past restorations.

The risks of these substances being contaminated, or insufficiently effective, are considerable.

Even organic produce requires thorough washing: it may not have synthetic chemicals, but mold, rot, fecal matter or other natural substances can contaminate it at any point from field to market.

It is proved that the technological production processes are accompanied by intense release of harmful substances that contaminate the work area and the environment, causing deterioration of working conditions for people and equipment.

The increasing number of sites affected by Technosols and their impact on the environment as growing media for plants or as source of pollutants require an understanding of their functioning and evolution, above all the knowledge on the transport of toxic substances from contaminated technogenic soils to groundwater.

The ships often contain asbestos, PCBs, mercury, lead, waste fuel oil, and other toxic substances that contaminate the areas around the shipbreaking yards.