Data · dataset · 2025
The number of good air quality days in 367 Chinese cities (2014–2024)
Listed in ScienceDB
According to China’s Air Quality Standard (GB 3095-2012), an Air Quality Index (AQI) of ≤50 is classified as excellent, ≤100 as good, ≤150 as light pollution, ≤200 as moderate pollution, ≤300 as heavy pollution, and >300 as severe pollution.
Description
Using daily data from the China National Environmental Monitoring Center, we have compiled a dataset tracking the annual number of good air quality days (i.e., days with AQI ≤100) across 367 cities in China from 2014 to 2024.
This dataset serves as a valuable resource for assessing and analyzing urban environmental quality.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.20703 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.20703 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |