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为了解理发店煤灶的SO_2对理发室内的污染情况,我们于1990年3月进行了本调查。采用盐酸付玫瑰苯胺分光光度法测定SO_2,同时在无煤灶的理发店内设点对照。 本次共调查理发店81家,店内热水用煤灶均为10cm的蜂窝煤,每店煤灶1个。理发室内SO_2浓度百分位数为:P_50.28mg/m~3,P_(25)0.71mg/m~3,P_(50)1.43mg/m~3,P_(75)3.02mg/m~3,P_(95)8.67mg/m~3。对照点共设4个,其SO_2浓度P_(50)为0.21mg/m~3。SO_2浓度P_(50)观察点高于对照点,但差异不显著(P>0.05),超过对居民区浓度限值(0.5mg/m~3)的1.86
In order to understand the barber shop SO2 hair barber indoor pollution, we conducted the survey in March 1990. Using hydrochloric acid to pay rose aniline spectrophotometric determination of SO_2, while no barbeque barber shop set point control. The total survey of barber shop 81, the shop with hot water are 10cm coal briquettes, coal stove 1 per shop. The percentile of SO 2 concentration in barber shop was: P_50.28mg / m ~ 3, P_ (25) 0.71mg / m ~ 3, P_ (50) 1.43mg / m ~ 3, P_ (75) 3.02mg / m ~ , P_ (95) 8.67mg / m ~ 3. Four control sites were set up. The SO 2 concentration P_ (50) was 0.21 mg / m ~ 3. The observation point of SO 2 concentration P_ (50) was higher than that of the control point, but the difference was not significant (P> 0.05), exceeding the limit of residential concentration of 0.56 mg / m