This ELISA method has sufficient sensitivity to enforce the maximum interim level Health Canada has set for MG and LMG of 1.0 ng g−1 of fish tissue.
By contrast any SLCPs released today will be long gone by the time we reach the peak, so as long as we cut them at some point in the interim, the level of the peak won't be affected.
California has set an interim safety level of 2 to 6 parts per billion for drinking water, telling water systems not to go higher than 40 parts per billion.
In 1995, the EPA issued an interim guidance level of 4 18 ppb for perchlorate based on the limited data available at the time.
The current interim guideline for levels of outdoor nighttime traffic noise, as recommended by the WHO, is 55 dB (WHO 2009), which, based on our results, may not fully protect vulnerable population groups.
All statistical tests will be performed at a two-sided significance level of 0.05 apart from the nominal one-sided significance levels of the interim analysis and final analysis determined by using the O'Brien-Fleming stopping rule.
In the meantime, the EPA is operating under the standing interim health guidance level of 4 18 ppb.
1 2 In most Chinese cities, concentrations of PM2.5 (particulate matter with aerodynamic diameter <2.5 µm) are still far above the level recommended by the World Health Organization's guidelines on air quality (interim target 2 level) of 10 μg/m (annual average) and 25 μg/m (24 h average).
Our central premise and recommendations are straightforward: the risk of adverse health effects associated with arsenic in drinking water is unknown for low arsenic concentrations found in the United States, such as at the current interim maximum contaminant level of 50 microg/l and below.
In the interim, regular surveillance of workers with high levels of exposure to EBDCs, with specific attention to markers of thyroid and hepatic pathology, should be considered.
