The phrase "alert threshold" is correct and usable in written English.
It can be used in contexts related to monitoring systems, safety protocols, or data analysis where a specific level of alertness or response is required.
Example: "The system will trigger an alarm when the temperature exceeds the alert threshold."
Alternatives: "warning limit" or "notification level."
The EU alert threshold for ozone of 240 μg/cu m was exceeded 190 times, compared with 127 times in 2005 and 99 in 2004, although the 2006 figure was much smaller than the 720 times the alert threshold was exceeded during Europe's 2003 heat wave.
Some economists estimate that the Chinese income gap, as measured according to the Gini coefficient, is currently around 0.48, above the alert threshold of 0.4, with 0 representing perfect equality and 1 representing perfect inequality.
The alert threshold level.
However, centres with three-year outcomes approaching the alert threshold may deserve additional scrutiny and monitoring of current performance".
Nonetheless, the correct DCP risk degree can be set by changing the alert threshold for each sensor unit.
For manganese, in all sites were founded high contents, which exceeded normal contents (NC) and alert threshold values.
The extremely toxic metal Cd was founded in contaminated soil in quantity that exceeded normal content from R area but under alert threshold values.
The normal content (NC) and the alert threshold level (ATV) for each investigated HM were used to assess the risks posed by soil HM contamination on environmental health.
Data from NHS England showed the unit at Leeds General Infirmary had similar death rates to two other centres but said the hospital came "very close" to an alert threshold.
It has been found a considerable soil contamination in the industrial area (sites 16-22) with Cu and Zn, which exceed occasionally the alert threshold (200 mg/kg Cu and 600 mg/kg Zn) according to [37].
In specific locations, outside the industrial perimeter, the alert threshold for Zn (300 mg/kg) and the intervention threshold for Cu (sites 34-38) wexceedededed as the result of the high input of waste deposition in the past.
