Forty students from four primary schools are surveying their peers on the dangers of tobacco. More than 500 children aged from 10 to 12 are expected to answer questions on the health effects of smoking. The survey is being organised by the Life Education Activity Programme to promote World No Tobacco Day on May 31. Executive director Jenny McGlynn said the survey would encourage students to become more aware about their health and encourage them to have more control over their environment. 'With the rise in smoking among the young in Hong Kong and the Asian region generally, it is vital to start at the grassroots and involve our children in a decision which could affect the rest of their lives,' Ms McGlynn said.