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China Urban Air Quality Index and Pollutant Data
Data Science and Analytics
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About
This product provides detailed air quality information for all major cities across China, capturing average values throughout the year 2022, specifically from 1 January to 31 December. The underlying data originates from the national urban air quality real-time release platform managed by the China National Environmental Monitoring Center. The information is typically structured around 24 hourly averages per day for each location, making it a valuable resource for time-series analysis of atmospheric conditions. The platform aims for daily updates of the source material.
Columns
The data includes various real-time concentration and moving average measurements for key pollutants, often measured in micrograms per cubic meter (μg/m3) or milligrams per cubic meter (mg/m3).
- AQI: The real-time Air Quality Index value.
- PM2.5: Real-time concentration of PM2.5.
- PM2.5_24h: The 24-hour moving average for PM2.5.
- PM10: Real-time concentration of PM10.
- PM10_24h: The 24-hour moving average for PM10.
- SO2: Real-time concentration of Sulphur Dioxide (SO2).
- SO2_24h: The 24-hour moving average for SO2.
- NO2: Real-time concentration of Nitrogen Dioxide (NO2).
- NO2_24h: The 24-hour moving average for NO2.
- O3: Real-time concentration of Ozone (O3).
- O3_24h: The 24-hour maximum concentration of O3.
- O3_8h: The 8-hour moving average for O3.
- O3_8h_24h: The 24-hour maximum of the O3 8-hour moving average.
- CO: Real-time concentration of Carbon Monoxide (CO), measured in mg/m3.
- CO_24h: The 24-hour moving average for CO, measured in mg/m3.
- date, Day of Year, hour, type: Temporal and index classification fields are also present.
Distribution
The data is delivered in a CSV file format, titled
china_cities_2022_combined.csv. The file size is approximately 225.22 MB. The structure includes 378 columns, though specific metrics focus on the pollutant concentrations listed above. Key fields show approximately 131,000 valid records. The expected update frequency for this type of product is designated as Annually.Usage
This data product is ideally suited for applications focused on environmental evaluation and air quality trend analysis. Potential uses include:
- Supporting environmental impact assessments and policy development.
- Analyzing seasonal and daily fluctuations in urban air pollution levels.
- Conducting long-term time-series research on climate and atmospheric science.
- Informing public health studies regarding exposure to urban pollutants.
Coverage
The geographic scope includes all cities across China, ranging from major metropolitan areas such as Beijing, Shanghai, and Guangzhou, to smaller regional centres. The temporal coverage spans the entire calendar year of 2022, from 1 January through 31 December. Data granularity is high, reflecting hourly average readings for the monitored indexes.
License
CC0: Public Domain
Who Can Use It
The primary intended users include:
- Environmental Researchers: For modeling pollution dispersion and atmospheric dynamics.
- Urban Planners: To assess the impact of city development on air quality.
- Public Health Officials: To correlate air quality data with health outcomes.
- Government Analysts: For monitoring regulatory compliance and tracking environmental targets.
Dataset Name Suggestions
- China Urban Air Quality Index and Pollutant Data (2022)
- 2022 Air Pollution Metrics for All Chinese Cities
- Hourly Environmental Monitoring of China (2022)
Attributes
Original Data Source:China Urban Air Quality Index and Pollutant Data
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