Dylan Baddour, Houston Chronicle: Tuesday, August 11, 2015
On Sunday morning, hundreds of thousands of tons of toxic gas were accidentally released from the Shell Oil facility in Deer Park.
According to reports from the Texas Commission on Environmental Quality, 326,166 pounds of butadiene escaped through an open valve on a spherical tank between 10:40 am and 11:35 am.
Neil Carman, a chemist with the Sierra Club of Texas and a former power plant inspector for the TCEQ, said that butadiene is a known human carcinogen, but that its molecular structure allows it to dissipate quickly in the hot summer air. The chemical is commonly expelled in car exhaust, but Carman said the quantity in the Shell incident was concerning.
Shell spokesperson Ray Fisher said the company is investigating the cause of the release. Meanwhile, data from nearby monitors did not exceed TCEQ odor or health-based screening levels during the incident.
“To the best of our knowledge, there were no adverse impacts on the community,” Fisher said.
According to the U.S. Environmental Protection Agency, long-term exposure to butadiene has been linked to increased likelihood of cardiovascular disease and leukemia.
This website and sisters royaldutchshellplc.com, shellnazihistory.com, royaldutchshell.website, johndonovan.website, and shellnews.net, are owned by John Donovan. There is also a Wikipedia segment.
Royal Dutch Shell conspired directly with Hitler, financed the Nazi Party, was anti-Semitic and sold out its own Dutch Jewish employees to the Nazis. Shell had a close relationship with the Nazis during and after the reign of Sir Henri Deterding, an ardent Nazi, and the founder and decades long leader of the Royal Dutch Shell Group. His burial ceremony, which had all the trappings of a state funeral, was held at his private estate in Mecklenburg, Germany. The spectacle (photographs below) included a funeral procession led by a horse drawn funeral hearse with senior Nazis officials and senior Royal Dutch Shell directors in attendance, Nazi salutes at the graveside, swastika banners on display and wreaths and personal tributes from Adolf Hitler and Reichsmarschall, Hermann Goring. Deterding was an honored associate and supporter of Hitler and a personal friend of Goring.
Deterding was the guest of Hitler during a four day summit meeting at Berchtesgaden. Sir Henri and Hitler both had ambitions on Russian oil fields. Only an honored personal guest would be rewarded with a private four day meeting at Hitler’s mountain top retreat.
IN JULY 2007, MR BILL CAMPBELL (ABOVE, A RETIRED GROUP AUDITOR OF SHELL INTERNATIONAL SENT AN EMAIL TO EVERY UK MP AND MEMBER OF THE HOUSE OF LORDS: 
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A head-cut image of Alfred Donovan (now deceased) appears courtesy of The Wall Street Journal.
This is the Shell plant I worked at for 32 years.