Reference for https://api.erg.ic.ac.uk/AirQuality/Information/Objective

This lists all of the current Air Quality objectives. Data returned in XML format

Url: https://api.erg.ic.ac.uk/AirQuality/Information/Objective

HTTP Method: GET

Message direction	Format	Body
Request	N/A	The Request body is empty.
Response	Xml	The Response body is arbitrary XML.