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Author Topic: new US federal regulations require >0.2ppm chlorine, will this affect plants?  (Read 890 times)

brian

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new US federal regulations require >0.2ppm chlorine, will this affect plants?
« on: April 18, 2019, 10:55:30 AM »
I saw mention of this in my local newpaper and it referenced new Federal regulations.  Is 0.2ppm chlorine in water harmful to chlorine-sensitive plants when used for irrigation?

https://www.dep.pa.gov/Business/Water/BureauSafeDrinkingWater/DrinkingWaterMgmt/Regulations/Pages/Proposed-Disinfection-Requirements-Rule--.aspx
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brian

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Re: new US federal regulations require >0.2ppm chlorine, will this affect plants?
« Reply #1 on: April 18, 2019, 11:17:55 AM »
I found a chart that seems to confirm that <70ppm is safe for all plants.  So this should be no problem.

http://www.kno3.org/product-features-a-benefits/chloride-sensitivity-in-crops
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pineislander

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Re: new US federal regulations require >0.2ppm chlorine, will this affect plants?
« Reply #2 on: April 19, 2019, 02:33:24 PM »
I don't keep many long-term container plants but have seen on here some folks who noted benefits of non-chlorinated water. The article seems to be speaking of in-ground crops.
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