Q52 I can think that our living environment is also getting worse? A A food situation is also with last matter. In it or before, the pollution situation of air and water is very serious. The patient of allergy to cedar pollen increases rapidly and it has become the social problem. But, a cause is not based on cedar pollen. It is in air pollution. Also in it, the exhaust gas of a diesel car is regarded as whether it is a principal offender rank. The government also raised the heavy waist at last and began perfunctorily regulation. But, it is already the situation of too late. The contents of the regulation are also very poor. Probably, there are many people who were exposed to the black gas breathed out from the exhaust pipe of a diesel car, and did unpleasant experience. Such gas is sprinkled and nobody still thinks that it is uninfluential for our health? "Everyone thinks that it is bad for our health. It is performed openly. And after a human body is spoiled at last, it makes a fuss at last. However, the radical measure is not still taken." Although it is sad, this is the present condition of many nations. In many nations, Freon is made an issue of by ozone destruction. This also suits, and does not change but it is in the state of effluence.