The State of the Detroit River and Lake Erie
There is a presentation at MCCC’s Meyer Auditorium tonight called “Coming Home. State of the Straits: Status and Trends of Key Indicators. This is an effort to present the results of compiled data on the ecosystems health in the Detroit River and Lake Erie. I wanted to go but I’m 40 minutes away from MCCC’s parking lot and don’t like the looks of the weather. What I did is find the results of the program and printed out about 30 pages that comprise the comprehensive and integrative assessment.
This presentation is based on information in “50 key trend data sets and indicators” according to the report itself. However, it also states that this comprehensive and integrative assessment is initial and heavily weighted on state information with “important data and knowledge gaps.” Nevertheless, it “lays the foundation for continuous improvement in the future.”
But I can’t tell from the report what we’re improving on. There are percentages of increase or decline of contaminants with no beginning measurements given. There are also very few quantitative targets. So we don’t know what aiming for. The study is over a 35-year time span. In 1970, we were polluted. The Clean Air and Water Act improved everything initially in a huge way. So to tell me from 1970 until now there has been an overall improvement in our water, well no kidding. What I want to know is what transpired over the past 10 years? For instance, regarding contaminants in western Lake Erie sediments, there is a record in 1971, and another in 1995 for mercury and PCB’s. Two records, 24 years apart are telling us there is a 70% decline in mercury in sediment and a 50% decline in PCB’s and other organochlorine contaminants. I don’t think that is very thorough. The mercury is 70% lower from what amount? Does this constitute a good amount? Mercury may have been 85% lower in the 90’s with pollution levels going up some 15% since then and the overall reading from 1971 will still look good at 70% reduction in pollution even though it’s rising again and quickly. Many of these reports concerning water end in 2004 too, like amounts of mercury in walleye.
Reports from 1977-2004 show that mercury in walleye has seen a 60% decline between the late 70’s and early 80’s; levels have remained steady since. What? Nothing has changed in over 25 years? It may be because there is more fishing, and therefore more fish caught at an early stage. We’re told to eat the smaller fish, especially in the ocean, because they have had less time to ingest mercury. There is nothing in this report that shows the accumulative affects of mercury either like from sediment, to fish, to birds, to larger predators.
I had to consider the source and motivation of this report too when I saw the list of editors and funding. Two of the editors are from the USFWS, the controversial agency that currently aims to kill the wolves and buffalo out west without presenting a solid answer as to why. And the funding sources include DTE, and the US EPA, another favorite controversial agency of mine. But like I said, I really wanted to hear this presentation. The presenters probably had really good slides of the wildlife that is thriving. Nothing is all bad news. If anyone attended please let me know about it.
I’ve included an article from the Toledo Blade about this presentation relative to receding shorelines and loss of water in the Great Lakes too. http://toledoblade.com/apps/pbcs.dll/article?AID=/20080107/NEWS06/801070402.
These are the actual tables resulting from the compilation of data for the trends reported in the presentation. http://www.epa.gov/med/grosseile_site/indicators/sos/assessment.pdf.