{"id":"6b86e3fd-723c-46e0-8aaa-40149b92ec1c","title":"纳木错大气和湖水中持久性有机污染物浓度数据集（2012-2014）","title_en":"Dataset of concentrations of atmospheric and water POPs in Nam Co (2012-2014)","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"表格形式，可以采用EXCEL打开查看和分析.","description":"纳木错观测的大气和湖水中持久性有机污染物的浓度，包括：大气气态有机氯农药（OCPs）、多氯联苯（PCBs）、多环芳烃（PAHs）浓度的时间序列；大气颗粒态PAHs浓度的时间序列；湖水中溶解态持久性有机污染物（POPs）的浓度；湖水悬浮颗粒物中POPs的浓度。大气样品由纳木错多圈层综合观测站的大气主动采样器采集，采样器的流量为60 L min-1，隔天采集，每半个月为1个样品，采样体积约为600 m3。每个大气样品包括吸附颗粒态POPs的玻璃纤维滤膜（GFF，0.45 μm，Whatman）和收集气态POPs的聚氨酯泡沫（PUF，7.5×6 cm）。湖水样品为环纳木错15个采样点采集的表层湖水样品，水深0-1 m，每个样品体积为200 L。水样先通过0.7 μm的GFF膜过滤得到水中的总悬浮颗粒物，然后使用XAD-2填充的固相萃取柱富集水中的溶解态POPs。各介质样品均在青藏高原研究所环境变化与地表过程重点实验室进行样品前处理和仪器分析。样品前处理步骤包括索式提取、硅胶-氧化铝柱净化、过GPC柱去除大分子杂质、浓缩定容等步骤。分析测试仪器为美国热电公司生产的气相色谱-质谱联用仪（GC-MS, Finnigan-Trace GC/PolarisQ）。分离OCPs和PCBs的色谱柱为CP-Sil 8CB毛细柱（50 m×0.25 mm×0.25 μm），分离PAHs的色谱柱为DB-5MS毛细柱（60 m×0.25 mm×0.25 μm）。采样和实验室分析过程均遵循严格的质量控制措施，设置了实验室空白和野外空白。PAHs的回收率在65-92%之间，OCPs的回收率在64-112%之间，样品浓度未使用回收率进行校正。","doi":"10.11888/Disas.tpdc.270217","projection":null,"language":"zh","share_type":"online","east":90.97,"west":90.97,"south":30.78,"north":30.78,"scale":null,"crs":null,"filesize":0.04,"share_policy":"a","ts_created":"2019-01-15T23:40:35.037760+08:00","doi_type":null,"ts_updated":"2021-04-19T20:16:50.592884+08:00","time_description":"","datas_group":3,"time_description_en":null,"data_format":null,"project":[11],"specials":["f002ce5a-05c3-4b9b-99fc-e16963e4e055","d752b89e-479e-4572-ba1e-30fd6c77dca0","f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"丛志远","username":"zhiyuancong","email":"zhiyuancong@itpcas.ac.cn","is_cancel_expert":false}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":"","temporal_resolution":"Monthly","spatial_resolution":"m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"6b86e3fd-723c-46e0-8aaa-40149b92ec1c","three_pole":null,"third_pole":"XDA20040502"},"username":"XDA20040500","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":2819}