exceedance

Crossing a threshold

Exceedance is the amount by which something surpasses a limit or threshold, or the act of surpassing it.

The term appears most often in environmental and regulatory contexts: exceedance of air quality standards, ozone exceedance days.

An exceedance event triggers reporting requirements or corrective action.

The word fills a gap—exceed is common, but English lacks a standard noun for the result.

threshold

limit

Maximum allowed extent

baseline · criterion · parameter · boundary · cutoff · level · standard · norm · specification · guideline

environmental

pollution

Environmental harm from waste

concentration · contamination · ozone · particulate · runoff · leachate · ambient · exposure · regulatory · compliance

violation

breach

Breaking of agreement

violation · overstepping · contravention · nonconformance · deviation · departure · failure · deficiency · irregularity · excursion

measurement

monitoring

Ongoing observation of something

frequency · probability · rate · duration · magnitude · extent · quantification · assessment · analysis · reporting

surpassing

surpassing

Going beyond in quality

topping · breaching · breaking · crossing · passing · transcending · eclipsing · outpacing · clearing · surmounting

Opposites
threshold relationship

exceedanceunderrun

Fall short of projected amount

shortfall · falling short · underage · deficit · compliance

regulatory compliance

exceedancecompliance

Adhering to requirements

conformance · adherence · attainment · within tolerance · observance

Family

excess, excessive, exceed, exceeding, exceedingly, exceeded, exceeds, exceedable

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