防污染 首先是防空气污染。由于街道两旁高楼耸立,商场里人群拥挤,道路上汽车、摩托车、自行车等川流不息,使得空气流通不畅,氧气含量降低。尤其是人们抽烟、喷嚏、咳嗽、吐痰、谈话以及代谢热量的散发,使空气污染加重。老年人在此环境下活动对健康极为不利。其次是防“噪光污染”。随着城市装璜热的兴起,在各大中城市的主要街道和繁华地段上,商 Anti-pollution is the first anti-air pollution. Due to the rise of tall buildings on both sides of the street, crowded shopping malls, cars, motorcycles, bicycles and other streams on the road, making the air poor circulation, reduced oxygen content. In particular, people smoke, sneeze, cough, spit, talk, and radiate metabolic heat that aggravates air pollution. Elderly activities in this environment are extremely detrimental to health. Second is to prevent “noise pollution.” With the rise of urban decoration hot, in major cities in the main streets and bustling lots, business