Receive this blog via Email


Voted 'best news blog' by readers of The Baltimore Sun in the 2010 Maryland's Outstanding Blog (or Mobbies) awards.


    The views and opinions expressed in the media, articles or comments on this site are those of the speakers or authors and do not necessarily reflect the views and opinions held by CBF and the inclusion of such information does not imply endorsement by CBF. CBF is not responsible for the contents of any linked Web, or any link contained in a linked Web site, or any changes or updates to such Web sites. The inclusion of any link or comment is provided only for information purposes. CBF reserves the right to edit or remove any comments and material posted to this website and to ban users from the site without notice. Partisan, pornographic or other inappropriate content, product or service promotion, foul language or bad behavior is expressly forbidden and will be removed.

Mobile Auto-Detection: Bay Daily

Tracking Code - Bay Daily

« Efforts to Control Suburban Sprawl Spark Fierce Backlash in Southern Maryland | Main | State Cleanup Plan Gets Public Scrutiny »



Feed You can follow this conversation by subscribing to the comment feed for this post.

The problem that exists in the Susquehanna River is far more ominous than nutrient pollution. Smallmouth bass are intersexed, they are dying from opportunistic infections that suggest immune incompetence and now they are displaying abnormal collections of melanin (black pigment) which could represent cellular dysplasia (melanoma/cancer)or hormonal dysregulation of melanin deposition. These three problems suggest chemicals in the water that could present significant public health risks for people eating the fish and using the water for drinking and recreation. While nutrient pollution can indeed damage the environment, chemical endocrine disruptor pollution has greater potential consequences for public health.
The problems need immediate and aggressive evaluation and this impaired watershed needs to be cleaned up now.

William L. Yingling M.D.

You raise some excellent points, Dr. Yingling.

Endocrine disrupting chemicals are indeed a suspect in the intersex problems among the smallmouth bass in the Susquehanna and other rivers, although exactly which chemicals and what their sources are remain unclear.

The kinds of pollution limits being contemplated as part of a possible impairment listing and Clean Water Act Total Maximum Daily Load for the river typically do not include endocrine discruptors -- such as drugs or herbicides or soaps -- so perhaps an updating of the standards are needed.

Hi Tom Pelton. I need your permission to publish the above article in a book I am writing. I would appreciate it. My email is You may see the book if you like. Thanks.

Paul Thomas

1. Publication-Bay Daily
2. Writer/Photographer-Not applicable
3. Date of publication- May 02, 2012
4. Headline/Caption- Not applicable
5. Name of publisher-Chesapeake Bay Foundation
6. Title- Smallmouth Bass Epidemic Highlights Need for Pollution Limits in Susquehanna River
7. Author- Tom Pelton
8. Print run-1,000
9. Date book will publish-2014

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Your Information

(Name and email address are required. Email address will not be displayed with the comment.)