concentrations
- plural of concentration.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Concentrations of beryllium, copper, chromium, nickel and lead in particular were significantly above established safety thresholds for marine life, prompting fears for the long-term health of fish, marine mammals and the marine food chain.
From Los Angeles Times • Mar. 20, 2026
Concentrations of the chemicals were sometimes up to 45 times above safe levels, with the situation shown to be killing aquatic insects.
From BBC • Mar. 10, 2026
Concentrations in drinking water systems higher than 0.8 milligrams per liter can be harmful, especially to infants, young children and fetuses, according to the Environmental Protection Agency.
From Salon • Dec. 15, 2025
Concentrations of these metals have roughly doubled in these alpine streams over the past 30 years, a new study finds, presenting a concern for ecosystems, downstream water quality and mining remediation.
From Science Daily • Apr. 23, 2024
Concentrations on enemy trenches and wire and special counter-battery shoots by day and counter-battery support of Infantry raids by night were continually required of us.
From With British Guns in Italy A Tribute to Italian Achievement by Dalton, Hugh Dalton, Baron
