Public data / Database

National Air Quality Monitoring Network — RNMCA

Hourly and daily measurements of atmospheric pollutants (PM10, PM2.5, NO2, SO2, O3, CO) supplied by certified official reference stations in Romania.

Open the source ↗JSON ↓Start a dossier with this source →

Before you use this resource

Real-time readings are provisional and not yet validated for sensor calibration or outages; certified data appear in annual consolidation. Distinguish urban background stations from traffic or industrial sites.

Published by: Ministry of Environment, Waters and Forests
Source: Public institution
Collection: Public data
Resource type: Database
Coverage: Romania; national station network
Documented formats: HTML, JSON
Licence / terms: Rights need checking
API access: Documented API
Record review date: 2026-09-07
Last resource update: 2026-09-06
Technical data audit: Not performed
Documentation: Source reviewed

Documentation

Interactive station map and report endpoints consulted directly on calitateaer.ro.

The cited page documents this record. Check the original source for terms and versions before reuse.

www.calitateaer.ro ↗

Getting started

Locate the monitoring station on the map and check its typology (traffic, industrial, urban background).
Select the pollutant of interest and retrieve hourly readings or monthly summaries.
Compare values against EU Directive 2008/50/EC and Law 104/2011 threshold limits.

Access and checks

calitateaer.ro portal ↗ · HTML
Sample inspected on 2026-09-07

Direct API queries

curl -s 'https://www.calitateaer.ro/' | jq .

import urllib.request
import json

url = "https://www.calitateaer.ro/"
req = urllib.request.Request(url, headers={"User-Agent": "CunoastereDeschisa/1.7"})
with urllib.request.urlopen(req) as resp:
    data = json.loads(resp.read().decode("utf-8"))
    print(json.dumps(data, indent=2)[:500])

library(jsonlite)

data <- fromJSON("https://www.calitateaer.ro/")
str(data)

INSTALL httpfs;
LOAD httpfs;

SELECT * FROM read_json_auto('https://www.calitateaer.ro/')
LIMIT 10;

Executable query snippets for command line, data pipelines, or DuckDB.

Data dictionary and field schema

Measurement schema — RNMCA Air Quality Network

Field / Column	Type	Description
`cod_statie`	text	Official station monitoring code
`tip_statie`	text	Station type: Urban background, Traffic, Industrial
`poluant`	text	Monitored pollutant indicator
`valoare`	decimal	Measured concentration over averaging interval
`um`	text	Measurement unit (e.g. µg/m³ or mg/m³)
`data_ora`	date ISO 8601	Timestamp of measurement reading
`indice_calitate`	text	Air quality index grade

Sample real record (JSON)

{
  "cod_statie": "RO0084A",
  "tip_statie": "Trafic",
  "poluant": "PM10",
  "valoare": 24.3,
  "um": "µg/m³",
  "data_ora": "2026-09-07T08:00:00Z",
  "indice_calitate": "Bun"
}

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