Extra services will run on the Thameslink route to help people get into the capital. Most weekend services are now eight carriages long, however the four carriage services between East Croydon and Bedford that run on Sundays will be lengthened to eight carriages on Sunday 3 June.
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Thursday evening's weather for the west of the region
Thursday evening's weather for the east of the region
In our special series, we investigate the ways in which we can all breath in less Black Carbon, decreasing the chances of health risks: