[Stoves] Air pollution in cities

[Nikhil Desai]

Crispin:

Clean air is not a luxury
<http://www.livemint.com/Technology/UrRkv3afeGi3Xt5hXKTFGK/Clean-air-is-not-a-luxury.html>
Vishal
Mathur Mint 14 November 2017.

I don't know what death chamber like conditions are. But no single
technology is an answer to air pollution which varies by season, day, time
of day, location, mobility.

There are proper methods for air quality monitoring and air modeling, then
a cost and schedule program has to be generated for each location. Some
fuel or activity bans may work, and episodic situations like Delhi recently
require emergency response measures. Just look up EPA color codes and local
government responsibilities.

A 40-year program. Little to do with ISO Tier 4 PM2.5 ERT.

You ought to be in Delhi in a sand storm period to appreciate that the
picture in Anil's essay conveys the right image. Leave aside toxicity
arguments for WHO.

Nikhil

------------------------------------------------------------------------
Nikhil Desai
(US +1) 202 568 5831
*Skype: nikhildesai888*


On Mon, Nov 20, 2017 at 10:11 AM, Crispin Pemberton-Pigott <
crispinpigott at outlook.com> wrote:

> Dear Anil
>
>
>
> I think this is a bit over the top:
>
>
>
> “This did not allow the smog and dust to disperse into higher atmosphere,
> thereby creating death chamber like conditions on the ground.”
>
>
>
> It is common hear claims that breathing air in such-and-such a place is
> “like smoking 2 packs of cigarettes a day”. I provided here at least one
> calculation of what people are exposed to in a city.
>
>
>
> First, PM is not equally toxic. The agricultural residue burning makes
> really ‘bad smoke’ stinging the eyes at 400 µg/m3. Coal smoke and vehicle
> smoke has nothing like the same effect, with the proviso that coal smoke
> varies a lot depending on what the source device is. Having experienced
> 3000 µg/m3 I can report that stubble burning is way worse than coal smoke.
>
>
>
> Second, just because someone places a number on paper does not make people
> sick. People who have ‘pre-existing conditions’ are at risk from all sorts
> of things. One of my childhood neighbours, an adult woman, was allergic to
> house dust and lived in a hermetically sealed home – but smoked! There is
> no pleasing some people…
>
>
>
> So…the photo in the article is taken over a long distance and zoomed, so
> you are looking ‘through’ perhaps a km or more of air. The BBC frequently
> shows pictures in Beijing taken in the same way – showing morning mist as
> ‘pollution’ when there really isn’t much to show.  How bad is Delhi air
> compared with living in an apartment in which one person smokes? Do the
> math. There is no city air as bad as sharing a flat with a smoker.
>
>
>
> The smouldering garbage and wet leaves story is typical of *real*
> pollution in cities. Absolutely awful with a huge emission rate per kg. The
> inversion in Delhi is a good example of what happens in Ulaanbaatar in
> winter – daily. Sometimes there is no wind, like last winter. Living in the
> city was like smoking ¼ of a cigarette per day in terms of exposure. I am
> not recommending it, but it is completely untrue that it is like ‘smoking 2
> packs a day’.
>
>
>
> What rubbish.
>
>
>
> Anil, what is the right balance to portray between factual alarm and
> alarming facts?
>
>
>
> Thanks
>
> Crispin
>
>
>
>
>
>
>
>
>
> My blog which appeared as front page news in Huffington Post.
>
>
>
> http://m.huffingtonpost.in/dr-anil-k-rajvanshi/there-are-
> various-ways-devised-in-india-itself-to-reduce-pollution-
> from-stubble-burning_a_23281512/?utm_hp_ref=in-homepage
> <https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fm.huffingtonpost.in%2Fdr-anil-k-rajvanshi%2Fthere-are-various-ways-devised-in-india-itself-to-reduce-pollution-from-stubble-burning_a_23281512%2F%3Futm_hp_ref%3Din-homepage&data=02%7C01%7Ccrispinpigott%40outlook.com%7C48d1d810b735421177c808d52ffc58c3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636467683224884788&sdata=zmIWiqX3Z47qDluqiBnaEc9haY7z50uaiyodY1KLu4M%3D&reserved=0>
>
>
>
> Cheers.
>
>
>
> Anil Rajvanshi
>
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