Thus the maximum permissible concentration for an 8-hr.

In December 1986 the permissible concentration of alcohol was set at zero for the first two years of driving.

The regulations also specify other restrictions for certain colors, such as the maximum permissible concentration in the finished product.

The threshold permissible concentration is 148 Bq/m.

The Ceiling Level or Ceiling Value is the maximum permissible concentration of a hazardous material in the working environment.

The norm specifies the permissible concentrations of pollutants per day, per month and instantaneous sampling, which are included in Chapter 4 of this norm.

The current system is to measure for a three-year period the number of hours in which ozone exceeds the maximum permissible concentration at various sites in a metropolitan area.

The oil products content of Mulyanka water at the place of the Pyzh's confluence exceeds the Maximum Permissible Concentration 49.4 times.

The Safe Drinking Water Act of 1974, amended in 1986, requires the Environmental Protection Agency to set maximum permissible concentrations for any substance known to be harmful to health or suspected of being harmful.

The standard now in effect for public water supplies limits the maximum permissible concentrations of most volatile organic chemicals to 50 parts per billion, with the total for all the chemicals not to exceed 100 parts per billion.

Still, the faucet standard is a deviation from the NSF's usual practice for contaminants that have a maximum permissible concentration; usually it allots each appliance coming into contact with the water a limit of one-tenth the amount of contamination allowed.

My second question is this: it would seem that a discussion paper has been circulating in the Commission in which it is proposed that a maximum permissible concentration of greenhouse gases, or rather of CO2 , be introduced and that this ceiling be set at 550 parts per million.

We in the Group of the European People' s Party consider it necessary to support the main lines set in the Commission' s proposal, especially with regard to target levels, which coincide with the guidelines of the World Health Organisation on air quality and which establish the permissible concentrations of ozone at 120 µg/m3.