Toxicological Trivia from February 23,2010: There are now more than 100,000 chemical pollutants and less than 10% of them have been valued for their adverse health effects. Asthma, neurological disorders, malformations, poisoning and cancer are just some of the pathologies that the EU considers attributable to environmental risk factors. Currently it is estimated that the percentage of European patients suffering from ailments related to environmental factors are:
a) 10%;
b) 20%;
c) 39%.

Correct answer: b. Read more in Spanish news: Environment and health.