It is increasingly being recognized and environmental measurements have demonstrated that Platinum (Pt) (and potentially Rhodium (Rh) and Palladium (Pd)) is released with the ageing of catalytic converters. Platinum is a ...

It has been argued that even though bro~d-spectrum pproaches to health promotion, using mass communication methods, may not be effective, they are still useful as' sources of health information and in reaching .hidden ...