The following update comes from Cathy Drinan of the Halifax Board of Health:

Eastern Equine Encephalitis has been identified in a sample of mosquitoes in Bridgewater. West Nile virus is, apparently, here to stay. Those over 50 are at greater risk. Please take precautions. You know what they are; we just need to do them:

  • Use repellent
  • Avoid dusk to dawn activities
  • Repair screens
  • Flush out and/or get rid of standing water
  • Use “dunks” (BTi larvicide) in swampy areas, ditches, and catch basins near your home.
  • Sports? Spray before You Play!

The Ponds:

Fourth Ave, State Boat Ramp and route 36/Holmes St beach closed due to algae over the safe threshold. (Same applies to Hanson.) Bad news all around. We must keep up the fight to clean up our ponds!

From DEP:

East Monponsett Pond Cyanobacteria Counts
Collected by Cathy Drinan, Halifax BOH, on July 15, 2014
1. Route 36 Boat Ramp: Cyanobacteria Cells/mL 231,981

Aphanizomenon aquae trichomes – This image shows the strands of algae showing up in the East Monponsett Ponds. I have been writing in my field notes that the water looked “dusty” and perhaps was what I was calling “suspended algae.” George Zoto, the DEP scientist who has been analyzing these samples, tells me that this species floats around in these skinny filaments and does not tend to form “rafts,” what we would recognize as a scum. Unfortunately, the numbers are over the threshold of 70,000 cells/mL and it means an advisory is up for the East Monponsett, as well as the West Monponsett Pond.

West Monponsett Pond Cyanobacteria Counts
Collected by Cathy Drinan, Halifax BOH, on July 15, 2014
1. Public Access Boat Dock: Cyanobacteria Cells/mL 117,400
2. 4th Ave: Cyanobacteria Cells/mL 167,707

4th Ave, off Lingan St