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Brad Devereaux Profile picture
@bdevero
Jun 4 • 4 tweets • 3 min read Twitter logo Read on Twitter
At @KalamazooCity hydrogen sulfide sensors early this morning -- We see two city park sensors reading above 3 ppb, touching 4 ppb

At the city WWTP sludge facility, we see some readings above 4 ppb, spiking to 5 ppb+.

WWTP and GPI are close to homes.

#KzooAirQuality Image
See @mdhhs hydrogen sulfide fact sheet:

michigan.gov/mdhhs/-/media/…
How close is the factory to homes?

Joel Bissell drone photo:

#KzooAirQuality Image
One more note today: Not sure what happened to this sensor - Data is not showing normal values as expected:
@KalamazooCity #KzooAirQuality #Kalamazoo Image

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More from @bdevero

Brad Devereaux Profile picture
Jun 6
Questions on proposed police surveillance:
1⃣ I was told by an official Fusus images are deleted in 48 hours. It was also said the images can be used in court. Please explain and make clear to residents.
@KalamazooCity @KalPublicSafety Image
2⃣ Which business cameras are connected to Fusus and @KalPublicSafety now -- and how many cameras?
3⃣ What's the written policy regarding use of facial recognition? The department has said Fusus cannot be used for facial recognition, but what prevents police from using a photo in a different facial recognition application outside Fusus? Is this policy in writing somewhere? A private security camera o...
Read 7 tweets
Brad Devereaux Profile picture
Jun 5
Kalamazoo City Commission June 5 meeting — on the agenda tonight at 7pm:

-Police surveillance contract
-Diversity, Equity, Inclusion action
-Action targeting toxic gas / odor

-Much more

Follow for a few updates here tonight
#kalamazoo @KalamazooCity Image
The @KalamazooCity agenda tonight includes 4 proclamations and 19 action items and an update on a long-term violence prevention strategy

Agenda here:
kalamazoomi.portal.civicclerk.com/event/681/over… Image
For the record, I was here before (most) people
😎 Image
Read 9 tweets
Brad Devereaux Profile picture
Jun 5
Hydrogen sulfide levels today at @GraphicPkg_Intl in Kalamazoo - higher activity today - hitting over 12-15 ppb at times

1.4 ppb is the level to avoid long term exposure of to protect health

Gas levels are elevated this morning at city parks nearby
#KzooAirQuality Image
Hydrogen sulfide data snapshot at
@KalamazooCity sludge: 12 ppb
Hospital: 6 ppb
Nearby city parks 4 ppb and 8 ppb
Graphic Packaging sits between the wastewater plant and the community, west of the city plant.
Experts: Avoid 1.4 ppb longterm to protect health
#KzooAirQuality Image
Elevated gas levels are seen regularly. Anecdotally, this morning we see more sensor activity than usual looking back at the past month of data.
Neighborhood residents waking up to elevated gas levels is quite common unfortunately.
#KzooAirQuality @KPCA2023
Read 5 tweets

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