Skip to main content
exceedance

exceedance

1 9.4
Chance that a value goes above a set limit in a given time period
  • noun
  • /ɪkˈsiːdəns/
  • Specialized
: exceso
  • Toxicological assessments had found exceedances of Canadian guidelines for arsenic, lead, manganese, PAHs, and benzene, mainly from soil samples taken from properties adjacent to the steel mill.
  • number of exceedances

Examples

  • Even if a waterway is considered unsuitable for human consumption under the Clean Water Act, exceedances of metals, nutrients, toxic algae, and pesticides may have sublethal effects on aquatic species.

    Academic text (2011)
  • The exceedance of the threshold for hazardous waste levels indicates a significant environmental risk.

  • OK, so who is in exceedance of this?

  • It helps you to understand how far in exceedance of that number we are and will be in the future.

  • Slope exceedance value

    Academic text (2013)
  • Extremes determine the exceedance of ecological thresholds and mortality.

    Academic text (2013)
  • Variables with exceedance probability values lower than .05 were regarded as significant predictors of attitudes.

    Academic text (1992)
  • Field sizes can be calculated using geologic data or through the use of an exceedance probability curve (see Baker et al. 1984).

    Academic text (1991)
  • Then, Evansville EPA director Joan Shelton always called exceedances of the health-based standards, "a glitch in the equipment."

    Blog text (6)
  • Even though the four-day average concentration peak in the urban core was 6 ppb higher than the highest average concentration recorded by the continuous monitors during the same time period, there were exceedances at three area continuous monitors.

    Academic text (2010)

How Likely

certainty
  • Literature
198 3.4
probability
212 3.6
exceedance
  • Specialized
1 9.4
likelihood
167 3.6
chance
∞ 1.0
possibility
∞ 2.0

Surface Forms

exceedance singular
exceedances plural

Morphology

exceedance = exceed (transparent) = exceed + ance

Formed by a standard nominalizing suffix '-ance' from the verb 'exceed', indicating the state or event of exceeding.

Etymology

Exceedance comes from the verb exceed, which means 'go beyond', and the parts ex- 'out' and ceed 'go' are the same parts you see in proceed. The ending -ance shows a 'result' or 'state', so exceedance is the event or result of something going past a limit, which is why scientists use it to say how often a value is exceeded.