The RSPB says urgent action is needed to prevent a repeat of the pollution that harmed thousands of seabirds in our region earlier this year.
It welcomes the news that the Maritime and Coastguard Agency is to ask the governing body, the International Maritime Organization, to reclassify the substance, PIB, making it illegal to dump it at sea.
But, if it does so, it will take time for it to become international law and the charity says something needs to be done now.
The RSPB is encouraging people to see the incredible bird life that descends on the Exe Estuary at this time of year. The charity has been running Avocet Cruises in autumn for more than 30 years.
The cruises, which start again this week, depart from Topsham and give people the chance to see some of the 40,000 birds that fly in from as far away as Siberia and Scandinavia.
Some of the seabirds washed up on the Dorset coast have been released back into the wild today.
They were found covered in an oil-type substance last month and have been looked after at the RSPCA centre in West Hatch in Somerset.
They were released from a clifftop on Portland.
Laura Makin-Isherwood reports:
Some of the seabirds washed up on the Dorset coast will be released back into the wild today. They were found covered in an oli-type substance last month and have been looked after at West Hatch RSPCA wildlife centre since. They're be released from a clifftop on Portland just after 8am.
Plans to turn parts of the Clyst valley near Exeter into a new habitat for wading birds are under fire from locals. The Environment Agency and the RSPB say there's no threat from the scheme, and rising sea levels make it a useful plan for residents and wildlife.
Scientists investigating mass pollution which injured and killed hundreds of sea birds along the south coast say the source of the contamination may never be known.
Around 300 birds, mostly guillemots, were treated at the RSPCA West Hatch centre near Taunton following the spill. The Maritime and Coastguard Agency said that it had been unable to trace the source of the spill and confirmed it has closed the investigation.
After tests were carried out on a sample of the product, it was identified as polyisobutene, or polyisobutyliene. This is a fairly common chemical carried aboard ships and it is produced in a large number of countries.Despite further tests, we have been unable to identify specific components of the product that may have helped us find the source. Unless we receive any new information, our investigation is now closed.
Scientists believe they've finally identified the mystery substance which was found on hundreds of birds washed up along the South West coast.
Many of them were taken to a rescue centre in Somerset where volunteers have spent almost a week trying to save them.
Tamsin Eames reports:
Chemists at Plymouth University have identified the sticky substance that has killed hundreds of sea birds off the Devon and Dorset coast.
Their findings suggest it's a form of Poly Isol Butene, or PIB, used as a lubricating additive in oils to improve performance.
Tamsin Eames reports:
Experts have identified the chemical which has caused a pollution incident off the South West coast. It's an oil additive, known as polyisobutene. Meanwhile the RSPCA Wildlife Centre in West Hatch is continuing to deal with birds caught up in the spill. Watch Caron Bell's report.
We are incredibly grateful for donations of margarine, fish for the birds and even some food for the staff which have come in from lots of local people.
This incident was completely unexpected and came out of the blue. We were not expecting such sudden vast numbers of birds to come through our doors in need of help and we were literally running out of the margarine to clean them and fish to feed them.
It is still early days and hard to say how the birds will survive in the long-term but the margarine is proving to be a real life-saver."