वायु गुणवत्ता पूर्वानुमान
वायु गुणवत्ता डेटा प्रदानकर्ता: the Air Quality in Wales (airquality.gov.wales)
Note that the measurement for O3 (ozone) are taken from the station: Caerphilly Blackwood High Street and the measurement for NO2 (nitrogen dioxide) are taken from the station: UK:Wales/Rhondda Mountain Ash