基于质控数据评估大气降水中阳离子的不确定度研究

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文章编号：1674-6139（2026）01-0122-04

中图分类号：X831文献标志码：B

Uncertainties in Determining Cations in Atmospheric Precipitation Based on Quality Control Data

Fu Jie，Chen Chunfei，Hu Zaoshi，He Dongming

（GuangxiEcoEnvironmentalMonitoringCentre，GuangxiKeyLaboratoryofEmergingContaminantsMonitoring，EarlyWarnin and Environmental Health Risk Assessment，Nanning 530028，China）

Abstract：ThisarticlecollctedintealqualityontroldatafromtwocologicalenvironmentmonitoringlaboratoriesItevaluatedthe uncertainties in measuring Na+ ， NH4+ ， K+ ， Mg2+ and Ca2+ cations in atmospheric precipitation by using ion chromatography based on thequalitycontroldataothlboratorieshveectiebasndprecisioncotrolLboratoryAmeasuesteetedednceatif cations，hichare.O6，.2.O8，.02，andOO，respectivelyLaboratoryBmeasuesthextendeduncertaintiesof5catios， whichareO.O8，.O，.O，.O8，nd.spectielyhisetodplisteevaationprocess，srogpractiality closelycombinstheitealualityotrolofogicalnvirontotoinglaboratosithuncaintyssessmentItproidesa new evaluation path and method for the quality control of atmospheric environment quality monitoring.

Keywords：atmosphere；uncertainty assessment；ion chromatography；cation

前言

大气降水不仅能去除大气中的污染物，其化学组成特征和浓度水平还能间接反映当地的大气污染状况、来源及程度等信息[1-2]，大气降水中阳离子是大气中主要离子组成之一[3-4]，对农业源、海盐源和生物质燃烧源有较强的表征作用。（剩余4567字）