Smokers inhale more tar, nicotine and carbon monoxide when measured with WHO method RIVM has measured the amount of tar, nicotine and carbon monoxide (TNCO) in all filter cigarettes sold in the Netherlands with the WHO Intense method.
Night shift workers more likely to have poor work-life balance People who work at night are more than 2.5 times more likely to have a poor work-life balance. They find it more difficult to combine their jobs and private lives than people who only work in daytime. This is one of the results of a study by RIVM and TNO.