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对广州市燃煤和燃气家庭的室内空气进行了监测，了解燃煤对南方城市室内空气的污染状况以及污染物在 室内的消长情况。结果发现，不论燃煤还是燃气，燃烧时都可导致室内空气污染物水平显著高于室外。燃煤导致的室内 空气污染状况比燃气家庭严重，前者以 ＳＯ_２、 ＣＯ和 ＩＰ污染为主，后者则以 ＮＯ_２污染为主。无论是燃煤还是燃气，均 以餐中时段室内污染物浓度最高；餐后 ０． ５ｈ，各污染物浓度即迅速下降接近餐前水平。与北方城市存在很大差别。
Indoor air in Guangzhou’s coal-fired and gas-fired families was monitored to understand the pollution of coal-fired indoor air in the southern cities and the growth and decay of pollutants indoors. The results showed that whether burning coal or gas, burning can lead to significantly higher levels of indoor air pollutants than outdoors. The indoor air pollution caused by burning coal is more serious than that of gas families. The former is dominated by SO2, CO and IP pollution while the latter is dominated by NO2 pollution. Whether it is coal-fired or gas-fired, the concentration of indoor pollutants in the meal period is the highest; 5h, the concentration of pollutants that is rapidly declining close to the pre-meal level. There are big differences with the northern cities.