exceedance
- noun
- /ɪkˈsiːdəns/
- Specialized
- 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
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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.
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OK, so who is in exceedance of this?
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It helps you to understand how far in exceedance of that number we are and will be in the future.
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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
- Literature
- Specialized
Surface Forms
Morphology
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.