You CAN actually drink the tap water in most places and brush your teeth with this water. If the tap water is supplied by the local authorities it is safe. However bore water can be a problem and it is best not to drink that. Most of the stories told are by people who do not come here. Thirty years ago it was not a good idea to use the ice or drink tap water.
For minor workers, the annual occupational dose limits are 10 percent of the dose limits for adult workers. For protection of the embryo/fetus of a declared pregnant woman, the dose limit is 0.5 rem (5 mSv) during the entire pregnancy.or adults, an annual limit that does not exceed: 1  5 rems (0.05 Sv) for the total effective dose equivalent (TEDE), which is the sum of the deep dose equivalent (DDE) from external exposure to the whole body and the committed effective dose equivalent (CEDE) from intakes of radioactive material.
For airborne exposures, there are three types of limits in common use: 1  the time-weighted average (TWA) exposure limit-the maximum average concentration of a chemical in air for a normal 8-hour working day and 40-hour week;he legal basis for the preparation of occupational exposure limits and biological limits in the European Union is contained in Directive 98/24/EC on chemical agents and Directive 2004/37/EC on carcinogens and mutagens.