As seen in USA Today, MSNBC, Dr. Oz, and the Chicago Tribune.

$type=ticker$count=12$cols=4$cate=0$sn=0

Maryland's Declining Oyster Population Affected by Roadway Runoff

In a report released just last month, researchers from Morgan State University and Saint Mary's College of Maryland found that roadwa...

In a report released just last month, researchers from Morgan State University and Saint Mary's College of Maryland found that roadway runoff negatively affects the early development and reproduction of oysters.

The oyster population is in peril in Maryland with only 0.3% of its 19th century population remaining. 1  This is due to a variety of factors including water pollution from numerous sources.  The desire to save this species is so great that the State of Maryland is encouraging private dock owners to assist in the re-population of oysters by attaching juvenile to their docks to increase survival.

The researchers focused on the pollutant polycyclic aromatic hydrocarbons, or PAH's.  PAH's are the potent problem chemical family in coal tar sealants which have been banned in numerous locations around the US.  This particular study looked at roadways, not parking lots.  Roadways rarely are treated with coal tar, but it is very frequent on parking lots.  It would have been an interesting line of research if they had looked at specific parking lot runoff, but perhaps that could be for a future study.  It also would be good to know just how much of that PAH was transported there from coal tar sealed parking lots. The USGS has observed this phenomenon in several locations across the US.

The concentration of PAH's used in the study were based upon the researchers' previous work with local roadway runoff.  The PAH concentration was within an order of magnitude of the probable biological effects concentration of 23 ppm.

The study's concluding findings are worth quoting:

This study's results provide evidence that PAHs entering an aquatic ecosystem from runoff from road surfaces have the potential to inhibit oyster reproduction by negatively impacting three critical processes in the early life cycle of the Eastern oyster.

The mystery to me is that with this knowledge and the value of this resource to the people of Maryland (and the Nation), that the practice of coal tar sealant use on parking lots continues.  The EPA led a Chesapeake Bay Toxic's Task Force that took topic up over 4 years ago and was ineffective in even recommending that the product use be curtailed.  Let's hope that coal tar sealer legislation pending in Montgomery County Maryland can begin this change for the State.

COMMENTS

Stay informed...Get FREE updates on new coal tar bans!

* indicates required

Google Search of this Site

Name

2016,49,ABC's,8,Action,53,airport,3,alternatives,6,Althoff,1,AMA,1,American Coating Association,2,Anacostia,1,Andover,1,applicator,1,APWA,1,ASCE,1,Asphalt Institute,1,ASTM,1,Austin,27,Austin Chronicle,1,ban,135,bans,5,Baylor,9,benzo[a]pyrene,1,Boca Raton,1,Boone,3,Burke,1,California,11,CalTrans,1,Canada,6,cancer,23,Cheh,1,Chesapeake Bay,1,Chicago,7,Chicago Sun Times,1,Chicago Tribune,7,china,1,Cleveland,2,coffee-tea test,3,Congress,6,Connecticut,2,consumer,1,cost,11,costs,1,Dallas,1,Dane County,1,Data Quality,1,Daughtry,4,DC,1,DDT,1,Deep Water Horizon,1,Delaware,1,Department of Defense,1,Department of Interior,2,District of Columbia,7,Doggett,17,DuPage River Salt Creek,2,Ed Burke,1,Edwards Aquifer Authority,3,Ellison,2,Emancipation,1,enforcement,6,environmental justice,1,EPA,31,EU,1,FAA,6,FAQ,14,field test,1,fish kill,3,Florida,2,Frockt,2,German Federation,1,Gowanus,2,Great Lakes,4,Gregoire,1,Hansen,4,Hawthorne,2,health,62,Hoffman Estates,1,Home Depot,1,Huffman,7,IARC,1,Illinois,27,Indiana,2,industry,68,Jeffords,1,Kansas,3,Keating,2,Lindsay,2,Long Island,1,Lowes,1,Mackerer,1,Madison,1,Maine,9,map,2,Maryland,8,Massachusetts,3,McDermott,1,McHenry,1,McHenry County,2,MCPA,1,Men's Health,1,Michigan,9,Milwaukee,1,Minneapolis,1,Minnesota,32,Mississippi River,2,Missouri,6,Montgomery County,3,Morgan State,1,MPCA,23,MS4,1,MSDS,1,MSNBC,2,national pavement contractors association,1,National Research Council,1,New Hampshire,4,New York,14,New York Academy of Sciences,1,Niezgodski,1,NOAA,1,North Carolina,3,npca,1,NPDES,1,Ohio,2,Oklahoma,1,OSHA,1,PCTC,2,Pennsylvania,1,Pets,1,Physicians for Social Responsibility,4,price comparison,6,Quigley,2,Quinoline,1,Reader's Digest,2,Regs,6,relative potency factor,1,Republican,1,Rice,1,Rocky River,1,Rodale,2,Rosenthal,3,RT-12,1,San Antonio,7,San Diego,1,Scalze,3,schools,8,Science,57,shotblasting,3,Sierra Club,1,Sisisky,2,Slavins,1,Smoking,2,South Barrington,1,South Carolina,1,Springfield,7,Stormwater Magazine,1,Suffolk,2,Suffolk County,3,Texas,4,The Doctors TV Show,1,Today Show,1,Tom Bashara,3,Toronto,2,tribute,1,TSCA,2,Twitter,9,UConn,2,University of Michigan,1,US Department of Health and Human Services,1,USA TODAY,3,USGS,43,Video,18,Wall Street Journal,1,Walmart,1,Warner,1,Washington,8,Washington Environmental Council,2,Washington State University,1,Watauga Riverkeepers,1,WEF,3,wetland regulations,1,Wieckowski,1,williams,2,Winfield,2,Wisconsin,3,z2014,31,z2014 Summary,14,
ltr
item
Coal Tar Free America: Maryland's Declining Oyster Population Affected by Roadway Runoff
Maryland's Declining Oyster Population Affected by Roadway Runoff
http://2.bp.blogspot.com/-6hIiy3lJG_E/T_WBCmBGYXI/AAAAAAAACVA/MbN-laN0ptk/s640/oysters_in_a_basket.jpg
http://2.bp.blogspot.com/-6hIiy3lJG_E/T_WBCmBGYXI/AAAAAAAACVA/MbN-laN0ptk/s72-c/oysters_in_a_basket.jpg
Coal Tar Free America
https://coaltarfreeamerica.blogspot.com/2012/07/marylands-declining-oyster-population.html
https://coaltarfreeamerica.blogspot.com/
https://coaltarfreeamerica.blogspot.com/
https://coaltarfreeamerica.blogspot.com/2012/07/marylands-declining-oyster-population.html
true
5212735001005847783
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy