UNEP GEO Data Portal Particulate Matter Concentration

The GEO Data Portal is the authoritative source for data sets used by UNEP and its partners in the Global Environment Outlook (GEO) report and other integrated environment assessments. The GEO Data Portal gives access to a broad socio-economic data sets from authoritative sources at global, regional, sub-regional and national levels. The contents of the Data Portal cover environmental themes such as climate, forests and freshwater and many others, as well as socioeconomic categories, including education, health, economy, population and environmental policies.

地理数据门户是联合国环境规划署（UNEP）及其合作伙伴在全球环境展望（GEO）报告及其他综合环境评估中使用的官方数据集的权威来源。地理数据门户提供了来自全球、区域、次区域和国家层面的权威来源的广泛社会经济数据集。数据门户的内容涵盖了诸如气候、森林和淡水等环境主题，以及包括教育、健康、经济、人口和环境政策在内的社会经济类别。