News Home Video Gallery Newsletters Cruising Int Photo Gallery
Sail-World.com : Bottom paint matters - San Diego waterways get a thumbs-up
Bottom paint matters - San Diego waterways get a thumbs-up

'Non-toxic bottom paint - must be put on more frequently'    .

If you ever feel irritated by the fact that your anti-fouling doesn't work like it used to, be reassured by how much you are helping sealife to survive. In San Diego, California, new studies have found that using non-toxic bottom paint is actually having a marked effect - more than anticipated - on the sealife of the area.

Two new studies focusing on San Diego Bay’s 2,200-slip Shelter Island Yacht Basin show decreasing levels of dissolved copper in the water, compared to previous studies -- and they find levels that are not toxic to most of the area’s marine life.

The news from the two studies completed in March brought both a sigh of relief to area boaters and a signal of caution about current moves the Port of San Diego is making to reduce the amount of dissolved copper in Shelter Island Yacht Basin.

The situation boaters in one of San Diego’s largest recreational marinas find themselves in today began when water testing found elevated levels of dissolved copper in many harbors in California.

'It (copper) can be especially harmful to species on the bottom of the food chain and the early life stages of fish, bivalves and echinoderms,' said Jeremy Haas, Environmental Program manager for San Diego’s Regional Water Quality Board. 'The toxicity is affected by several factors, including the form of the copper, its availability and the varying tolerance of aquatic species. Some of our native aquatic species are very sensitive to copper, while others are more tolerant.'

In 1996, the San Diego Regional Water Quality Control Board determined that 95 percent of the copper found off Shelter Island came from the sloughing of copper-based boat bottom paints in the basin. Copper, a common ingredient in antifouling boat paint, was said to be toxic to marine life in the surrounding area. The water quality board issued a Total Maximum Daily Load (TMDL) for Shelter Island Yacht Basin, meaning limits had been placed on the amount of dissolved copper allowed in the basin at any given time.

Since then, the Port of San Diego has been working to minimize the amount of dissolved copper in the waterway by implementing Best Management Practices for hull cleaning companies, focusing on reducing the amount of copper released into the water and grant programs to give boaters incentives to replace their copper-based hull paints with non-biocide hull paints.

The TMDL order from the regional water board stated that there must be a reduction in the amount of dissolved copper in Shelter Island Yacht Basin of 10 percent by the end of 2012, 40 percent by 2017 and 74 percent by 2022.

The first study was prepared by Weston Solutions and the Port of San Diego for the Regional Water Quality Control Board as part of the first progress report, to determine whether the basin was coming closer to meeting the 10 percent reduction rate required by the end of this year.

The findings showed a 27 percent reduction in annual dissolved copper loading from boats in Shelter Island Yacht Basin and a 15 percent reduction in the annual dissolved copper concentrations in the basin, surpassing the 10 percent milestone that the basin was required to meet by the end of next year.

To read the rest of the very detailed article, click here, but it's good to know that these efforts required of sailing boat owners in most sailing nations of the world really do work.


by Taylor Hill, The Log/Sail-World

  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=96562

12:24 AM Fri 27 Apr 2012GMT


Click here for printer friendly version
Click here to send us feedback or comments about this story.

Click for further information on
Environment and the ocean

Related News Stories:

18 Apr 2012  Solar-powered yacht's circumnavigation - in the home stretch
09 Apr 2012  Royal Yacht Squadron leads the armada against windfarm plan
06 Apr 2012  Where the whales are
19 Mar 2012  GreenBlue wants a report card
18 Mar 2012  Sailing ketch Irene - goodbye billionaires, hello cargo!
14 Mar 2012  Climate Change misconceptions and realities - an Ocean Watch Essay
06 Mar 2012  Gulf of Aden crossing and a pirate rendezvous - PlanetSolar
02 Mar 2012  New theory: Neanderthals were great sailors
11 Feb 2012  America pauses on E15 - study bill passes
03 Feb 2012  Whales, whales and more whales in Southern California
MORE STORIES ...






Cruising USA







Springtime Greening: Boaters Tips for Earth Day by BoatUS Foundation/Sail-World Cruising,








How sailors really do have a voice in the future of our oceans by Sandra Whitehouse, Sailors for the Sea,


Message-in-a-bottle record - 102 years by AFP/Sail-World Cruising,








Canadian solo sailor rescued north of Auckland by Sail-World Cruising round-up,




















Free online fuel spill course - how much do you know? by BoatUS Foundation/Sail-World Cruising,












Life-shattering event sends 'rookie' couple sailing the world by Asia News Network/Sail-World Cruising,








3,200-year-old boat found in Croatian waters by Haemus/Sail-World Cruising,


Product of the Week: the LineGrabber
Mediterranean Mooring - How to moor stern-to to a dock or quay
Canadian storm bomb threat - sailors advised: get off the water!
Sailing family condemmed for taking 3-year-old on circumnavigation
New contract-free plan for satellite communicator on your smart phone
Yacht of the Week: The Dashew creation: no sails, but eco-friendly
No laughing! Sailing mistakes I don't want to make
Destination: From Moscow Sea to the White Sea
Land sailors of India on adventure across the Rann
A Paint App to (almost) replace your marine store assistant
Volunteer Canadian rescue team homeless - any offers?
Hilary Lister and Nashwa Al Kindi set a new trans-ocean record
How to anchor and 'never utter a word'
Non-pyrotechnic flares for my boat - Can I or can't I?
Health benefits of sailing
Cruising in the Maldives - some nuts and bolts
ISAF Guide to Offshore Personal Safety for Racing and Cruising
Halyard Tension - a video
Winchrite - for lazy days or extra muscle-power
Researcher examines 'current leaks' that may change the way you sail
Paris off to attempt to circumnavigate the world again   
Need a tow from that helicopter? - watch the video and don't laugh   
Certain oil spill products shown to be ineffective and toxic + Video   
The Constrictor: a powerful 'Queen' of sailing knots!   
Boat painting - simple but best tips   
'It's never just one thing' - Swedish sailors rescued   
Cruising Club of America celebrates outstanding sailors of 2013   
Book of the Week: From the Galley of...   
Two brave women to sail India to Oman across Arabian Sea   
Rhode Island's Classic Yacht Symposium - Registration opens   
Bad Karma as roving American cruising sailor fined in New Zealand   
Another rescue for second-time unlucky solo sailor   
New York to San Fran record attempt - Maserati reaches the Horn   
Finally the book:HMS Bounty, Disaster and Survival in Superstorm Sandy   
Yachts impounded in Mexico - the agony goes on...   
Students achieve robot boat Atlantic Crossing - but not as planned   
Endurance Award for cruising sailors, new worldwide award for 2014   
It's coming. Dodgers/biminis to be solar power producers   
New Maldives rule - yachts can stay six months   
Unmanned tsunami boat takes three years to reach Taiwan   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
X6XL NEW Cru USA