UCI Air Quality Roadside Multisensor Dataset
Abstract
"Real-world hourly air quality measurements from an array of chemical gas sensors deployed at road level in a polluted Italian city, collected from March 2004 to February 2005.[web:46][web:53][web:77]"
Description
Overview
The UCI Air Quality dataset contains real-field measurements from an air quality chemical multisensor device installed at road level in a significantly polluted area within an Italian city.[web:46][web:53][web:77]
Data Collection
- Data were recorded hourly from March 2004 to February 2005, yielding 9,358 time-stamped instances.[web:46][web:53][web:77]
- The device consisted of an array of 5 metal-oxide gas sensors plus reference analyzers for several pollutants.[web:46][web:53]
- The monitoring station captured both pollutant concentrations and basic meteorological variables.[web:53][web:77]
Variables
- Date (DD/MM/YYYY) and Time (HH.MM.SS) for each observation.[web:46][web:53]
- Reference analyzer concentrations for CO, Non-Methanic HydroCarbons (NMHC), and Benzene (C6H6).[web:46][web:53][web:77]
- Sensor responses PT08.S1–PT08.S5 (tin, indium, tungsten oxides etc.) nominally targeting CO, NMHC, NOx and O3.[web:46][web:53]
- Meteorological variables including Temperature, Relative Humidity, and Absolute Humidity.[web:46][web:53][web:77]
Typical Use Cases
- Time-series modeling and forecasting of urban air pollution levels using real sensor data.[web:56][web:59][web:77]
- Anomaly detection and sensor drift analysis in deployed gas sensor networks.[web:46][web:53]
- Environmental IoT benchmarking and data quality assessment for low-cost air quality devices.[web:46][web:53]
📊 View Data Structure
To explore column names, data types, and sample rows, visit the official dataset page on UCI Machine Learning Repository.
Preview on UCI Machine Learning Repository
Cite This Dataset
UCI Machine Learning Repository (2009). UCI Air Quality Roadside Multisensor Dataset. [Dataset]. UCI Machine Learning Repository. https://archive.ics.uci.edu/dataset/387/air+quality
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Original source: UCI Machine Learning Repository (2009). Visit official page for more details.
Indexed by IoTDataset.com on Jan 26, 2026
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