New risk limits for 18 pesticides in surface water Evidence suggests that existing standards for some of these substances do not sufficiently protect the ecosystem. For others, no standards exist yet or the existing standards are outdated. If these
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