[Stoves] Off-topic: air pollution in a Kenya spot (re: Teddy)

Sun Nov 18 23:46:05 CST 2018

Ah, I see.

*''I recommend not reading idiotic newspapers. Best remedy for
pollution.' * Point
taken.

Teddy

On Mon, Nov 19, 2018 at 4:40 AM Nikhil Desai <pienergy2008 at gmail.com> wrote:

> Teddy: You asked Crispin but I am taking the liberty of replying.
>
> Recommend for what?
>
> Who is WHO, and what do “recommended guidelines” mean, if not in Kenyan
> law?
>
> The 24-hr average, even if it is a Kenyan legal standard at the same level
> as the WHO recommended guideline, does not mean that level has to be
> maintained at every spot every moment, or even every day. That is why air
> quality standards allow annual average and daily or half-hourly spikes
> exceeding the standard.
>
> WHO PM10 recommended level for 24-hr mean is 50 mcg/m3. This newspaper
> article only mentions 266 mcg/m3 for one spot, one moment.
>
> This doesn’t amount to beans, or a microgram of concern. Yes, asthma
> patients were hospitalized; I am not making light of that. Just what should
> be done by whom needs a lot more information. (Send Kirk Smith with
> monitors and use HAPiT; he will recommend banning home use of solid fuels,
> and compute aDALYs. He might even be more plausible. To some.)
>
> The Kenyan authorities would have to define a region for air quality, do
> air basin modeling, and settle on emissions control from specific sources
> at particular times for particular levels of daily and annual averages.
> (Read my reply to Anil a little while ago. Let me see if there is an Air
> Pollution for Dummies book; if not, EPA should commission me to write it.
> All the relevant information is on EPA websites.)
>
> Suppose that the steel mill in the story is to control its emissions. I
> can’t tell what its options would be. Taller stack is good for gases; not
> sure about PM10, because heavier particles tend to fall to the ground.
> (PM10 includes PM5 and PM2.5, I believe.) Taller stack may not make much
> difference to how far the heavier particles go.
>
> This idea that an electrostatic precipitator (ESP) could be needed is
> rather nutty.
>
> Also, ESP, which is used for particulates, would capture gases, even CO2,
> which is not a pollutant, is beyond imagination.
>
> I recommend not reading idiotic newspapers. Best remedy for pollution.
>
> Incidentally, I wonder what KBS as the head of ISO TC-285 would say about
> emission standards for this steel mill and their interaction with household
> cookstoves standards.
>
>
>
> Nikhil
> Skype: nikhildesai888
>
> On Nov 17, 2018, at 1:09 PM, Cookswell Jikos <cookswelljikos at gmail.com>
> wrote:
>
> So what would you recommend?
>
>
> Teddy Kinyanjui
> Sustainability Director
>
>
>
>              <https://www.facebook.com/CookswellJikos>
> <https://www.instagram.com/cookswelljikos>
> <https://twitter.com/cookswelljikos?lang=en>
>
>
>
>
>
>
>
>
>
> On Sat, Nov 17, 2018 at 6:24 PM Crispin Pemberton-Pigott <
> crispinpigott at outlook.com> wrote:
>
>> Dear Teddy
>>
>> We get and idea about the value of the technical analysis by the authors
>> when reading this:
>>
>> “Additional recommendations include: installing fabric filters to reduce
>> emission of fine dust particles, using electrostatic precipitators that can
>> tremendously minimise the emissions of sulphur and nitrogen oxides and
>> carbon dioxide.”
>>
>> If they manage to reduce sulphur and nitrogen oxides and carbon dioxide
>> with the use of an electrostatic precipitator, a large number of people
>> would be interested to know how they did it.
>>
>> Regards
>>
>> Crispin
>>
>>
>>
>> In last weeks newspaper here in Kenya,
>>
>> ''The residents are also able to use the readings from the sensors to
>> advocate measures to improve the air quality. The sensors.AFRICA project
>> was set up in Mukuru Kwa Reuben at Reuben FM, 330 meters from Accurate
>> Steel Mills, a subsidiary of Bhachu Industries Limited. The readings from
>> 330m away were high, and we were there to see what the sensors would tell
>> us about pollution closer to the factories.
>>
>> The data collected by the air quality sensors confirmed the residents’
>> claims that the factories regularly release emissions between 2pm and 6pm.
>> Using the World Health Organisation’s Air Quality guidelines, the data
>> showed that over a seven-day period with data collected over 24hrs,
>> residents living around the sensor at Reuben FM were seeing Particulate
>> Matter (PM) 10 values higher than the WHO-recommended levels over a 24-hour
>> period, four days of the week.
>>
>> The values were so high, despite being over a quarter of a kilometre away
>> from the factory. The Code for Arica team went on walkabout to take
>> readings with a portable sensor closer to the factory.
>>
>> Our first reading at Maendeleo Learning Centre at 2.59pm was 266 Î¼g/m3
>> for PM 10, well above WHO air quality standards. The factory with the
>> chimney emitting to the right of the school was identified as Divani, but
>> that could not be substantiated. Its chimney is visibly lower than the
>> prescribed Nema guidelines, which is 40-50m high from the tallest building
>> in the neighbourhood.
>>
>> An environment expert at the National clean air production Evans Nangulu
>> said following latest assessments of the Bhachu factory, they had directed
>> the company to raise its chimneys from 20m to at least 50m to increase the
>> dispersion rate of the waste gases.
>>
>> Additional recommendations include: installing fabric filters to reduce
>> emission of fine dust particles, using electrostatic precipitators that can
>> tremendously minimise the emissions of sulphur and nitrogen oxides and
>> carbon dioxide.
>>
>> On how these regulations are being enforced, Nangulu said: “The main
>> challenge is that we have so many papers on policies and regulations in
>> place, but enforcement and enactment remains a nightmare. When you go to
>> the ground, you realise very little is being done.”
>>
>> Adding: “Enforcing these regulations is not a one-off idea. It should be
>> continuous, and if those in charge can tighten their ends to ensure both
>> developers and factories follow the law, we can reduce the unfortunate
>> situation that the people in Kwa Reuben find themselves in.”  Nangulu urged
>> factories to adopt modern technologies to help them manage their
>> emissions.''
>>
>>
>> https://www.the-star.co.ke/news/2018/11/07/mukuru-fumes-put-60-asthma-patients-a-month-in-hospital_c1843071
>> <https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.the-star.co.ke%2Fnews%2F2018%2F11%2F07%2Fmukuru-fumes-put-60-asthma-patients-a-month-in-hospital_c1843071&data=02%7C01%7C%7Cf013cb951bbd428d89c608d64c9a18d5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636780622053698390&sdata=nFUQnAIFDMnCrK2CxKdNJjUQ1dgEKFdLSR64B8mghSU%3D&reserved=0>
>>
>>
>> Teddy Kinyanjui
>>
>> Sustainability Director
>>
>>
>>
>>
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