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exceedance

American  
[ik-seed-ns] / ɪkˈsid ns /

noun

  1. the act or fact of exceeding something, especially a limit or standard.

    penalties for exceedance of air quality standards.

  2. the amount by which something exceeds a limit or standard.

    a 10 percent exceedance.


Etymology

Origin of exceedance

First recorded in 1950–55; exceed ( def. ) + -ance ( def. )

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.

"No evacuation orders for area residents have been put in place by emergency response agencies monitoring the incident, and no exceedances have been detected by the facilities fence line monitoring system," the company said.

From BBC • Oct. 3, 2025

Russell said research shows that the DWP’s dust control efforts have been successful in reducing PM10 emissions from the lake bed, as well as the frequency of exceedances of air quality standards.

From Los Angeles Times • Jun. 19, 2025

Although all studied vehicles exceeded nitrogen oxide emission limits, the largest exceedances were observed in diesel vehicles, even up to 21 times the limit.

From Science Daily • Oct. 12, 2023

“And we have seen no exceedances inside the homes or in the local air.”

From New York Times • Feb. 28, 2023

For example, California's San Joaquin Valley is home to a great deal of the state's farmland and is one of the primary areas that has experienced increased air quality standard exceedances since 2017.

From Salon • Jan. 25, 2022

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