Re: Explain these standards please - urgent

[Neil Tangri <ntangri@essential.org>]

Hi folks,

Can someone give me a hand with interpreting this chart of USEPA standards?
I'm confused about several things:

1) particulates: what is GR/DSCF
2) what is ppmv? ppm = parts per million, but what's the v for?
3) what does the oxygen percentage refer to?
4) I assume that the alternatives (or xx reduction) refer to old plants
that are being upgraded. Is this correct?
5) on dioxins, why does it say ng/Nm3? shouldn't it be per cubic meter, not
cubic nanometer?

Please send your replies to samir <ravig@unv.ernet.in> as well as me.

Thanks much!

Neil


>At 16:55 8/28/99 +0500, you wrote:
>>
>>Hi Neil,
>>
>>Can you explain these standards to me , in lay man terms. I got this of the
>>net and am including it in our Burn technology factsheet.
>>
>>Thanks
>>
>>samir
>>
>>
>>Table 2 New Source Performance Standards (NSPS) Emission Standards for All
>>Types of Waste Combusters
>>S.No	Pollutant	Standard
>>1. 	Particulate	0.015 GR/DSCF @7% O2
>>2. 	SO2	30 ppmv  @ 7% O2  or 80% reduction
>>3. 	HCl	25 ppmv @ 7% O2  or 95% reduction
>>4. 	NOx	180 ppmv @ 7% O2
>>5. 	Dioxin/Furan	30 ng/Nm3  @ 7% O2
>>Source USEPA
>>
>>
>>c/o Srishti
>>#1001 Antariksh Bhawan
>>22, K.G. Marg
>>New Delhi - 110001
>>ph: 3328006, 3725325
>>Fax 4632727