目的 对比研究两种海洋大气氯离子监测方法.方法 针对湿烛法与干片法各自的特点,在万宁试验站海洋平台、近海试验场、内试验场和不同离海距离的屋顶监测了两种方法多种条件下的氯离子沉降速率.采用成对数据的符号秩和检验法对比研究了湿润、透风、采样的方向性、氯离子污染程度对两种采样方法的监测结果的影响,采用皮尔逊积矩相关系数分析了气象因素对氯离子沉降速率的关系.结果 湿润、透风、采样的方向性是重要的影响因素,氯离子污染程度越大的环境,其影响程度越大.结论 诸多影响的综合结果导致了湿烛法监测的氯离子沉降速率高于干片法.%Objective To carry out comparative study of two kinds of chlorides deposition rates determination methods in marine atmosphere.Methods According to characteristics of wet candle and dry plate methods, Cl- deposition rate was monitored under various conditions by using the two methods in Wanning exposure station marine platform, offshore test site, inner test site and roofs of different distance away from the sea. Influences of humidity, ventilation, sampling orien-tation, chloride ion pollution degree on monitoring results of the two sampling methods were studied by using the signed rank of paired data and test method. The relationship between meteorological factors and Cl- deposition rate was analyzed by using Pearson product-moment correlation coefficient.Results Humidity, ventilation, sampling direction were im-portant factors, and that the greater the degree of chloride pollution was, the greater the degree of influence.Conclusion The combined results of many effects lead to that the Cl- deposition rate of the wet candle method is higher than that of the dry plate method.
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