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.

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Etymology

Origin of exceedance

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

Example Sentences

"If the warming rate of the past 10 years continues, it would lead to a long-term exceedance of the 1.5°C limit of the Paris Agreement before 2030," says Stefan Rahmstorf.

From Science Daily • Mar. 9, 2026

“The City and County of San Francisco is deeply concerned by both the magnitude of this exceedance and the failure to provide timely notification,” wrote San Francisco Health Officer Susan Philip in an Oct.

From Los Angeles Times • Nov. 7, 2025

These included "storage outside the licence boundary, control of pests, exceedance of the three-month storage limit and control of odour" in 2023.

From BBC • Jul. 17, 2025

Urban areas, already rich in nitrogen oxide from cars and industry running on fossil fuels, can jump way past their air-quality exceedance when wildfire emissions blow into town on a hot summer day.

From Scientific American • Sep. 12, 2022

The highest exceedance of total suspended solids — a measure of floating particles — reached upward of 1,000 percent over the limit, Wirtis said.

From Seattle Times • Dec. 24, 2021