Report Is Tough On Dioxin Data

A report released by Communities for a Better Environmentasserts that water quality regulators have drastically underestimatedthe amount of dioxin pollution produced by oil refineries in the BayArea.

1 minute read

August 17, 2000, 9:30 AM PDT

By California 2000


A report released by Communities for a Better Environmentasserts that water quality regulators have drastically underestimatedthe amount of dioxin pollution produced by oil refineries in the BayArea. Senior scientist Greg Karras found that many potential sources gountested or are inadequately monitored. The report is in direct responseto the San Francisco Bay Regional Water Quality Control Board'srelaxation of dioxin emission standards for Tosco's Avon refinery, basedon the conclusion that the refinery is not a significant source ofdioxin pollution. The report estimates that actual dioxin emissionsrange from 1.8 billion picograms and 171 billion picograms daily, whileregulators only estimate 11 million picograms and 137 million picogramsdaily. Experts say that one picogram of exposure a day is said toincrease the risk of cancer over a lifetime. Regulators expressed doubtin the accuracy of the report, stating that refineries do not contributemuch dioxin in the larger scheme of pollution.

Thanks to California 2000 Project

Friday, August 11, 2000 in Contra Costa Times-Walnut Creek

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

July 2, 2025 - Mother Jones

Close-up of park ranger in green jacket and khaki hat looking out at Bryce Canyon National Park red rock formations.

National Parks Layoffs Will Cause Communities to Lose Billions

Thousands of essential park workers were laid off this week, just before the busy spring break season.

February 18, 2025 - National Parks Traveler

Paved walking path next to canal in The Woodlands, Texas with office buildings in background.

Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50

A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.

February 19, 2025 - Greg Flisram

Screenshot of shade map of Buffalo, New York with legend.

Test News Post 1

This is a summary

0 seconds ago - 2TheAdvocate.com

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

18 minutes ago - Mother Jones

test alt text

Test News Headline 46

Test for the image on the front page.

March 5 - Cleantech blog