The silver (or rather, a coating of samarium nitrate on the silver ... usually a solid catalyst with liquid or gaseous reactants, and surface in that the catalysis occurs at the interface between ...

The study did lead to the formation of a Community Water System Nitrate Priority Tool, which will help identify the communities with the highest contamination levels and seek to help them ...

However, a new view is evolving with the accumulating evidence that nitrate and nitrite metabolism occurs in blood and tissues to form NO and other bioactive nitrogen oxides, representing an ...

The U.S. Environmental Protection Agency recently added segments of five rivers near large Iowa cities including Cedar Rapids to the state's impaired waters list for nitrate — over the repeated ...

Scientists have made an advancement in the field of electrocatalysis. Their latest research, published in the journal Nature Materials, sheds light on how catalysts can stay in unanticipated forms ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

“Lead released from smelting is the world’s first form of toxic or industrial pollution,” said Yale historian Joseph Manning, who was not involved in the study. Researchers studying sediment ...

By Hiroko Tabuchi and Mira Rojanasakul At the height of the Los Angeles County wildfires, atmospheric concentrations of lead, a neurotoxin, reached 100 times average levels even miles from the ...

Further still, another danger has arisen from the wildfires—large amounts of inhalable, airborne lead. The tragedies vividly remind us how lead, a neurotoxin, can still present in communities ...

Each condition tested was prepared as 14.5 mL of inoculated culture plus 1 mL deionized water (for “no additions” controls) or inhibitory salts (sodium nitrate, sodium nitrite) dissolved in deionized ...

The form filed with the U.S. Office of Government Ethics and obtained by USA TODAY detailed her financial links to Trump through organizations he owns or that supported him. Bondi, “like all ...