研究领域： This paper assesses mental health responses to information on environmental risks. We exploit the progressive implementation of a national program in China that This paper assesses mental health responses to information on environmental risks. We exploit the progressive implementation of a national program in China thatThis paper assesses mental health responses to information on environmental risks. We exploit the progressive implementation of a national program in China that This paper assesses mental health responses to information on environmental risks. We exploit the progressive implementation of a national program in China that