五大连池风景区林内气体污染物浓度月变化规律研究

Monthly Variation of the Concentration of GasPollutants in the Forest in Wudalianchi Scenic Area

通过在五大连池风景区采用连续长期定位观测的方法对蒙古栎林内O_(3)、NO_(2)、SO_(2)、CO等4种气体污染物进行月动态变化规律研究。结果表明:景区5月O 3浓度最高,为108.5μg•m^(-3),远高于8月和11月;8月O 3浓度最低,为28.7μg•m^(-3)。景区11月NO 2浓度最高,为20.8μg•m^(-3),远高于5月和8月;5月NO 2浓度最低,为2.0μg•m^(-3)。景区11月SO 2浓度最高,为18.1μg•m^(-3),远高于5月和8月;5月SO 2浓度最低,为0.4μg•m^(-3)。景区11月CO浓度最高,为2027.7μg•m^(-3),远高于5月和8月;5月CO浓度最低,为600.3μg•m^(-3)。景区5月、8月和11月4种气体污染物浓度均达到国家一级标准,个别天气达到国家二级标准,表明景区空气质量优良。

The monthly dynamic changes of four gas pollutants(O 3,NO 2,SO 2,CO)in Quercus mongolica forests were studied by using continuous long-term positioning observations in Wudalianchi Scenic Area.Result shows that the O 3 concentration in the scenic spot is the highest in May,which is 108.5μg•m^(-3),which is much higher than that in August&November;the O 3 concentration is the lowest in August,which is 28.7μg•m^(-3).The NO 2 concentration in the scenic spot is the highest in November,20.8μg•m^(-3),much higher than that in May&August;the NO 2 concentration is the lowest in May,which is 2.0μg m^(-3).The highest SO 2 concentration in the scenic spot is 18.1μg•m^(-3) in November,much higher than that in May&August;the lowest SO 2 concentration is 0.4μg•m^(-3) in May.The highest CO concentration in the scenic area is 2027.7μg•m^(-3) in November,much higher than that in May&August;the lowest CO concentration is 600.3μg•m^(-3) in May.The concentration of four gas pollutants in the scenic area in May,August&November all reach the national first-level standard,and individual weather reach the national second-level standard,indicating that the air quality of the scenic spot is good.