CAJ | 학술논문

2010年4月~2011年4月，在九寨沟连续监测了总悬浮颗粒物(TSP)和水溶性无机离子的浓度。结果表明：旅游活动显著增加了空气中TSP、SO42-、Ca2+、K+、NH4+和NO3-的含量，而Na+、Mg2+和Cl-则主要来自自然源；旅游强度最高时期(6~10月)，降水对空气的清洗作用最强，气溶胶污染程度为全年最低；旅游强度较低时期(1~3、4~5和11~12月)，降水量较低且西北沙尘易在春季抵达九寨沟，所以气溶胶污染程度较高；区域燃煤可能是气溶胶[SO42-]：[NO3-]比值较高的原因；生物质燃烧可能是K+在秋末至次年初春较高的原因之一。九寨沟大气环境已明显受当地旅游活动和污染物长距离传输的影响。
2010년4월~2011년4월，재구채구련속감측료총현부과립물(TSP)화수용성무궤리자적농도。결과표명：여유활동현저증가료공기중TSP、SO42-、Ca2+、K+、NH4+화NO3-적함량，이Na+、Mg2+화Cl-칙주요래자자연원；여유강도최고시기(6~10월)，강수대공기적청세작용최강，기용효오염정도위전년최저；여유강도교저시기(1~3、4~5화11~12월)，강수량교저차서북사진역재춘계저체구채구，소이기용효오염정도교고；구역연매가능시기용효[SO42-]：[NO3-]비치교고적원인；생물질연소가능시K+재추말지차년초춘교고적원인지일。구채구대기배경이명현수당지여유활동화오염물장거리전수적영향。
From April 2010 to April 2011, weekly to biweekly samples of total suspended particle (TSP) were collected at two sites in Jiuzhaigou National Nature Reserve (Jiuzhaigou hereafter). The site at the entrance was much more affected by local tourism (e.g., tour bus), compared with the site at the Long Lake meteorological station. Ionic concentrations of the samples were measured. The results show that TSP, SO42-, Ca2+, K+, NH4+ and NO3- concentrations in air were significantly higher at the entrance than at the Long Lake meteorological station, while Na+, Mg2+and Cl-concentrations were similar between the two sites, respectively. Pronounced seasonal variations in ionic concentrations were observed. Concentrations of TSP and most ions were lower during the peak season of tourism (from June to October), probably due to the higher cleaning effect of precipitation on air. In contrast, concentrations of TSP and most ions were higher during the other months, likely owing to low precipitation amount and the spring dust from northwestern China. Furthermore, the equivalent ratios of [SO42-]:[NO3-] were relatively high. All above suggest that atmospheric environment in Jiuzhaigou was considerably polluted by local tourist activities, regional combustion of coal and biomass, and spring dust transported from northwestern China.