Archive for category Toxics
[Originally published on my blog Historical Threads on April 5, 2010. This version has been refined & corrected, where necessary.]
In a previous post, I reported on a meeting I attended of the Portland Harbor Community Advisory Group in December 2009. The present post provides some of my thoughts after attending the April 14, 2010, CAG meeting. Read the rest of this entry »
[Originally published on my blog Historical Threads on Feb. 10, 2010. This version has been refined & corrected, where necessary. There are three comments at the original post.]
The information cited below is somewhat reminiscent of the conflict between the City of Portland (CoP) and the Oregon State Sanitary Authority (OSSA) in the late 1950s regarding the city’s inadequate treatment of its sewage. The OSSA (and other abatement advocates such as the local chapters of the Izaak Walton League and the City Club of Portland) were pushing the CoP to implement secondary sewage treatment, because the city’s then-current primary treatment regime was insufficient to ensure adequate dissolved oxygen in and north of city limits. However, CoP leaders (Mayor Schrunk, et al.), balked at making these costly upgrades. So, the OSSA took the city to court and by 1961 forced the city to propose a tax levy and expand their sewage treatment infrastructure.
At least one place where this general pattern breaks down, however, is that pollution related to sewage is significantly less complex to deal with than the current issues with persistent, toxic, and bio-accumulative chemicals.
Ah, makes me wistful for the good ol’ days of floating feces and toilet paper . . .
Scott Learn, “Milestone report on Portland Harbor pollution lowballs risk, EPA says,” Oregonian Jan. 22, 2010, p. B8.
“EPA officials say the October report from the Lower Willamette Group prematurely rules out some harbor contaminants as threats to wildlife and overstates uncertainties about the pollution’s risk to human health.”
“The dispute is important: The lower the risks of harbor pollution in Willamette River sediment, the less cleanup work the group’s members and other harbor landowners will have to do.”
[Originally published on my blog Historical Threads on Dec. 10, 2009. This version has been refined & corrected, where necessary. There is one comment at the original post.]
I went to a Portland Harbor Community Advisory Group meeting last night at which was discussed the Natural Resource Damage Assessment (NRDA) process. Tonight there will be a forum for public commentary on the NRDA that was presented last night; I won’t be able to attend this meeting due to prior commitments.
First, an overview of what I learned at this meeting; second, some thoughts spurred by what I learned.
[Originally published on my blog Historical Threads on May 18, 2011. This version has been refined & corrected, where necessary.]
This post provides some preliminary research and analysis on dioxin pollution in the Willamette Watershed connected to pulp and paper mill effluents.
I was recently at an environmental history conference and found myself in a discussion with someone doing research on dioxin pollution from pulp and paper mill effluents. As we were sharing stories, I realized that I had not seen a single reference to the word “dioxin” in any of the government reports, newspaper articles, professional journals, letters, or other primary sources from the 1900s into the 1960s that I have consulted thus far. Over the past few weeks, I’ve searched various primary and secondary sources, with the goal of determining just when dioxins became a known toxin, and when they were linked empirically with pulp and paper mill effluents, to determine if I had inadvertently missed something very important (and would have to re-write my thesis), or if this type of pollution hadn’t been discovered until after the 1960s (and I was OK).
Here is what I have found thus far . . . Read the rest of this entry »