They contain aluminum phosphide gas. Speculation is that a ship is dumping them. It's been happening for a year.
http://www.theaustralian.com.au/news...-1226591449423
http://www.theaustralian.com.au/news...-1226591449423
Gas canister removed from Gold Coast beach
From: AAP
March 06, 2013 2:59PM
A GOLD Coast beach has been re-opened after Fire and Rescue crews removed a potentially lethal gas canister which washed ashore.
The canister, which had a slight leak, has been disposed of safely...
From: AAP
March 06, 2013 2:59PM
A GOLD Coast beach has been re-opened after Fire and Rescue crews removed a potentially lethal gas canister which washed ashore.
The canister, which had a slight leak, has been disposed of safely...