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现行 KS I ISO 9359-2019
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대기질 — 대기질 평가를 위한 층별 시료채취 방법 空气质量 - 分层抽样法评价环境空气质量
发布日期: 2019-06-12
该标准规定了使用分层采样原理评价百分位数和平均大气质量状况的方法。方法是估计大气质量特性测量频率分布的百分位数和平均值。但平均估计的应用仅限于假设利用事先信息对大气质量特性的频率分布进行的情况,或在统计上获得足够数量的独立测量(参见KS A ISO 2854和ISO 2602)。结果可用于在测量调查期间评价大气质量(请参阅ISO 7168,对于期间的长度)。通过使用多层长期发生信息,可以使用同一数据库获得更长时间内的评估。因此,虽然气象条件对大气污染物的浓度和分布有很大的影响,但分层采样使间隔期间有效的与实际大气状态无关的结果可以长期计算。
이 표준은 층별 샘플링 원리를 사용하여 백분위수와 평균에 의한 대기질 상황을 평가하기 위한 방법에 대하여 규정한다. 방법은 대기질 특성 측정 빈도 분포의 백분위수와 평균을 추정하는 것이다. 그러나 평균 추정에 대한 응 용은 대기질 특성의 빈도 분포에 대해 사전 정보를 이용하여 이루어진다고 가정하는 경우 또는통계적으 로 독립적인 측정의 충분한 수를 얻을 수 있을 경우에 국한된다(KS A ISO 2854와 ISO 2602참조). 결과는 측정 조사 기간 동안 대기질을 평가하는 데 사용될 수 있다(기간의 길이에 대해서는 ISO7168 참 조). 여러 층의 장기 발생 정보를 사용함으로써 같은 데이터베이스로 더 오랜 기간에 대한 평가를 얻을 수 있다. 그러므로 기상 조건이 대기 오염물의 농도와 분포에 큰 영향을 미치고 있으나, 층별 샘플링은 간격 동안에 효과가 있는 실제 대기 상태와 무관한 결과가 장기간 계산 가능하게 한다.
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