Data Communal Estimations 2021

In this archive are collected the aggregated municipal values calculated from the results of the simulations on a regional scale performed with a chemical-physical model of air quality. These are therefore not measures, but estimates that also use data from the ARPA air quality detection network. The data accessible from here are to be considered provisional until the completion of the validation process of the measures, the consequent recalculation of the values and the publication of the consolidated data; consolidated estimates for the previous year are usually available from 30 June of the current year. The pollutants and their downloadable aggregations are: • daily average weighed on the municipal territory of fine particulate matter and nitrogen dioxide (PM10, PM2.5, NO2 with associated parameter average per day). For municipalities belonging to zone D of the new regional zoning (valley grounds) is also available the estimate of the average weighted on the only urbanised part of the municipal territory (PM10 Urbanised, PM2.5 Urbanised, NO2 Urbanised with associated parameter Media Giorn.). The archive can be consulted from 01/01/2011 for PM10 and nitrogen dioxide, while for PM2.5 particulate matter it can be consulted from 01/01/2016; • maximum daily nitrogen dioxide in the municipal territory (NO2 with maximum daily parameter). The archive can be consulted from 01/01/2011; • daily tropospheric ozone maximum on the municipal territory (O3 with associated parameter Massimo Giorn.). The archive is available from 01/05/2011 and for the years 2011 to 2015 can be consulted between 1 May and 30 September; from 01/01/2016 the data is available throughout the year; • daily maximum of the eight-hour moving average of tropospheric ozone in the municipal territory (O3_MM8 with associated parameter MaxMm8h). The archive can be consulted from 01/01/2016. It should be noted that the method for calculating maximum values in the municipal territory (for nitrogen dioxide and tropospheric ozone) has been updated from 01/01/2016, the date from which the maximum value is calculated as the maximum hourly maximum weighed on the municipal territory.本数据集收录了基于区域尺度空气质量化学-物理模型模拟结果计算得到的市级聚合数值。此类数据并非实测值，而是结合了ARPA空气质量监测网络数据的估算值。 本平台可获取的数据均为暂定值，直至相关实测值验证流程完成、对应数值重新计算并发布最终整合数据为止；上一年度的最终估算数据通常可于当前年度6月30日起获取。 本次可下载的污染物及其聚合数据类别如下： • 细颗粒物与二氧化氮的市级辖区日加权平均值（包含PM10、PM2.5、NO2，关联参数为日均值）。对于属于新区划D类区域（河谷地带）的市域，还可获取仅针对其建成区的加权平均估算值（PM10建成区、PM2.5建成区、NO2建成区，关联参数为Media Giorn.）。PM10与二氧化氮的数据可自2011年1月1日起查询，PM2.5数据则自2016年1月1日起开放查询； • 市级辖区内二氧化氮的日最大值（NO2，关联参数为日最大值参数）。数据可自2011年1月1日起查询； • 市级辖区内对流层臭氧日最大值（O3，关联参数为Massimo Giorn.）。数据集自2011年5月1日起开放，2011至2015年仅可在每年5月1日至9月30日期间查询；2016年1月1日起，数据全年开放； • 市级辖区内对流层臭氧8小时滑动平均日最大值（O3_MM8，关联参数为MaxMm8h）。数据集可自2016年1月1日起查询； 需注意，针对二氧化氮与对流层臭氧的市级辖区最大值计算方法已于2016年1月1日更新，自此之后，最大值将以市级辖区内的逐小时加权最大值的最大值作为计算结果。