LIS CWN Webinar 2: Tackling Nitrogen Pollution - Shared screen with speaker view
Jane Fasullo
please provide link to sign up for the newsletter.
Diana Nguyen, TNC (she/her)
Thanks for asking Jane. You can sign up to join the Network newsletter here: https://tnc.us20.list-manage.com/subscribe?u=eb5f064300cb0774dba178ac7&id=7c6036ca8c
Stephen Klyce
what is being done to develop slow N release fertilizers to retain the nutrient at the site of need?
Jessica LeClair
Do you have information on the numbers of yard signs versus stickers selected by residents?
George Hoffman
What about supporting state laws that limit nitrogen components in fertilizer sold in stores?
Judy Rondeau
Thanks for your question, Jessica.
Stephen Klyce
Is there any significant contribution from commercial entities? Dairy, poultry, tree farms, grapes, potatoes, etc, etc.
Judy Rondeau
We distributed 169 bins stickers vs. 31 signs. However, due to the cost of the signs we only purchased 50, vs 250 stickers, so we had many more stickers to hand out. Anecdotally, I think people preferred the stickers because they were less visible than the signs, which was a bit counter to our goal to have our message displayed prominently.
Jessica LeClair
Thanks, Judy.
Paul Eddy
How do we reconcile these conclusions with the deadzone in Saybrook and Westbrook? Is it local shoreline fertilizing or river outflow or equally both?
Robert Johnston
One answer is that this project does not (yet) address some factors that can influence DO and dead zones, such as (1) delivery factors to embayments, i.e., how much of that nitrogen reaches particular waters, and (2) what happens to that N once it reaches the water, e.g., due to hydrodynamics. It also addresses only residential fertilization, not other possible sources of N delivery.
Robert Vasiluth
Can any agree in NY, with the great state of Connecticut to ban Methoprene aerial spraying of our shared interest?
Judy Rondeau
For those who are interested in some light reading, here is the link to the New England Regional Nitrogen & Phosphorus Fertilizer and Associated Management Practice Recommendations for Lawns based on Water Quality Considerations: https://www.uvm.edu/sites/default/files/Extension-Master-Gardener/NE_Recommendations_for_P_and_N_Lawns.pdf
Allison DePerte
Are these grants available as a reimbursable process for the homeowner, or does the money get distributed up front?
Stephen Klyce
Have you seen a measured decrease in N content in regions where these N sparing systems have been installed?
Jane Fasullo
I heard Katherine say the alternative systems work in low lying areas. But don't they need to have a water discharge field? How does that work when the level of the field is at or under high tide levels?
Maureen Murphy
Stephen Klyce--While there hasn't been any policy changes implemented, Miracle Gro has developed a Long Island specific fertilizer in response to advocates and community concerns. The fertilizer has a high content of slow release fertilizer.
Stephen Klyce
thank you, MM
David Newburn
Rob Johnston and I are writing a report to summarize our findings on lawn fertilizer behavior and N loading predictions. We should have this report prepared in June.
Jane Fasullo
Does the complication of maintaining an alternative system and the repeated servicing and cost keep people from switching?
Nico Calderon
Jane, the idea of it does, but in actuality, in ways it's easier to maintain because homeowners are required to have a maintenance contract where the system is taken care of by a professional--which could be like hauling your own trash vs having a trash service.
Jane Fasullo
Was there a look at the differences in pollution resulting from liquid and solid lawn fertilizers?
Peter Linderoth
Dr. Vaudrey's and colleague's N-loading model was referenced a few times today. Here is the link to the page (which includes the spreadsheet where you can select/compare embayments of interest): https://vaudrey.lab.uconn.edu/embayment-n-load/#
Diana Nguyen, TNC (she/her)
Thank you for attending today’s webinar everyone! As a reminder, a recording of the Nitrogen Pollution webinar will be emailed to registrants and attendees and will also be available on the Network website: https://www.liswaterquality.org/driving-local-actions-to-tackle-water-pollution/
Nico Calderon
Peter - we have a nice anecdote from Shelter Island on how quickly a clean water septic system can improve water quality if you are on a private well!
Stephen Klyce
Thanks for a great overview! The next steps are ahead…hooking up septics to sewer treatment, improving effluents and so on.
Judy Rondeau
To Peter's comments regarding lag time in seeing an embayment response to nitrogen reductions, USGS did a study on the effects of the sewering of a neighborhood on the Niantic River: https://pubs.usgs.gov/sir/2015/5011/
Diana Nguyen, TNC (she/her)
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Allison DePerte
Thank you everyone, this was a great webinar
Diana Nguyen, TNC (she/her)
Our next webinar will be held on Thursday, June 16 at 12pm and will be about fecal bacteria pollution. Please register on the Network website: https://www.liswaterquality.org/driving-local-actions-to-tackle-water-pollution/
Robert Johnston
Thanks for the great questions and feedback everyone!
Katherine Coughlin
Thank you!
Katherine Coughlin
Jane Fasullo
Good to hear about all the science behind this.