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.
RIVM measures much higher levels of tar, nicotine and carbon monoxide in cigarettes Tar, nicotine and carbon monoxide (TNCO) levels measured in accordance with the Canadian Intense (CI) method are at least twice as high as the levels measured in accordance with the prescribed ISO
European critical loads: database, biodiversity and ecosystems at risk Approximately 79 percent of the nature reserves (Natura 2000 areas) in EU countries are estimated to be exposed to an excess of nitrogen deposition in 2020.