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Re: nitrates and NO3-N
- To: Aquatic-Plants at actwin_com
- Subject: Re: nitrates and NO3-N
- From: Shireen Gonzaga <whimbrel at comcast_net>
- Date: Wed, 27 Aug 2003 17:39:20 -0400
- User-agent: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.0.1) Gecko/20020920 Netscape/7.0
> NO3-N means 'nitrate-nitrogen' not 'nitrates'.
That intuitively makes sense. But here's an excerpt of what
I got from a lab administrator at the Baltimore City Bureau
of Water and Wastewater
The nitrate values we report are ppm or mg/L (NO3-N).
The USEPA MCL for drinking water is 10 mg/L nitrate
I also went to the EPA website. Here's a quote from
The MCL for nitrates has been set at 10 ppm,
As you can see, both professional government agencies refer
to nitrates in (NO3-N) units. If the EPA really meant that
Maximum Contaminant Level (MCL) was 10 ppm NO3, well ....
that means that our tap water is way too clean. ;-)
whimbrel at comcast_net