M4 Speed Cameras to Tackle Pollution Date: Saturday, September 28 @ 10:56:04 UTC Topic: Source Get Speed Camera Warnings For SatNavs Get Speed Camera Warnings For iOS (iPhone and iPad) Get Speed Camera Warnings For Android (phones and tablets) New speed cameras have been installed on the M4 to tackle air pollution - specifically to reduce nitrogen dioxide levels. 50mph limits were originally trialled in December 2018 on the M4 near Port Talbot, Wales - the limit is now permanent. Click here to read more... Click here to discuss... Tweet This article comes from Pocket GPS World - SatNavs | GPS | Speed Cameras http://www.pocketgpsworld.com The URL for this story is: http://www.pocketgpsworld.com/modules.php?name=News&file=article&sid=4796