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Author Topic: Bristol pollution drops 30 per cent  (Read 1473 times)
infoman
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« on: March 27, 2020, 05:49:18 pm »

according to a report just published.

Thought it would have decreased by more than 30 per cent.
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Bmblbzzz
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« Reply #1 on: March 27, 2020, 06:00:33 pm »

Well, it's early days... But if we've seen the same report, it was talking about nitrogen dioxide, which I think is mostly from diesel engines. Buses are (till Monday) still running a normal service and there are lots of delivery vans driving round, so could be more drop in petrol-sourced pollutants. Plus, I wonder about domestic heating?
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Tuesday had come down through Dundrum and Foster Avenue, brine-fresh from sea-travel, a corn-yellow sun-drench that called forth the bees at an incustomary hour to their bumbling.
Red Squirrel
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« Reply #2 on: March 28, 2020, 12:05:37 am »

My perception - I live fairly close to the centroid of the built-up area of Bristol - is that the air tastes Alpine, and that I can actually see further.

I read somewhere that the number of lives saved due to cleaner air may actually match the number lost through Coronavirus...
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grahame
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« Reply #3 on: March 28, 2020, 12:12:29 am »

I read somewhere that the number of lives saved due to cleaner air may actually match the number lost through Coronavirus...

I read that too - not sure if it was a local city stat, a country stat, or a worldwide one.  Maps online at the BBC showed NO2 pollution levels averaged over the last 10 days, and the same 10 days a year ago; we are told that this 10 day period is long enough to be significant.  But of course we can't believe everything we're told, even if it's on the BBC.

edit to add - reduced pollution maps - https://www.bbc.co.uk/news/science-environment-52065140 .

Comparison maps - I have put them alongside each other as it was an awkward scroll in the original.

Note that NO2 - as I understand it - is just one component of a complex soup with CO2, particulates and probably many other things I don't understand in there as well.

« Last Edit: March 28, 2020, 02:05:38 am by grahame » Logged

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infoman
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« Reply #4 on: March 28, 2020, 07:36:50 am »

When I have taken the walk down to the local shop for supplies,the bus's I have seen are empty.

In my ideal World ,just wondering if they could cancel all the bus's in the Bristol area.

Then get taxi's to do the trips on a call the taxi company basis and then the taxi companys would bill the bus company for trips made.

Maybe start with a trial on Sundays only.

It would save on drivers premium wages paid on Sundays, fuel in the bus's and to a small extent maintainance.
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grahame
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« Reply #5 on: March 28, 2020, 07:54:24 am »

When I have taken the walk down to the local shop for supplies,the bus's I have seen are empty.

In my ideal World ,just wondering if they could cancel all the bus's in the Bristol area.

Then get taxi's to do the trips on a call the taxi company basis and then the taxi companys would bill the bus company for trips made.

Maybe start with a trial on Sundays only.

It would save on drivers premium wages paid on Sundays, fuel in the bus's and to a small extent maintainance.

I'm not sure how you keep people 2 metres apart in a taxi.

I also hate to say it, but some passengers are more important than others and - if we have it right - it's the important ones who are left on the buses. Getting to the care home to look after the people there is important; getting to Clovelly to buy an ice-cream on the beach this year is not.     

To some extent, you're looking at a move towards responsive travel and I'm not sure how well that has worked out so far - tried in countryside areas such as the Vale of Pewsey you've had the "Wiggly Bus" which wiggles where wanted between Devizes and Pewsey but with slashed transport volumes requirements, it could work in a more urban area.

When a train is replaced by a bus ... the a bus is replaced by a taxi ... when a trains is replaced by taxis, it strikes e that you're using more manpower rather than less much of the time.  And should the trial become something that's happening daily for an extended period, are you vehicles off the road to the extent they're going to be hard to bring back?

This is a time to look at extraordinary ideas - but remembering that we need to act / set things up with a priority for the current times, but with a view to preserving what we will probably need in future times.
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infoman
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« Reply #6 on: March 28, 2020, 08:25:04 am »

If taxis were used it would be for single occupancy only,all the bus stops could have a phone number on them of the local taxi companies
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grahame
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« Reply #7 on: March 28, 2020, 08:50:23 am »

If taxis were used it would be for single occupancy only,all the bus stops could have a phone number on them of the local taxi companies

I hear what you're saying - but I think you mean double occupancy - driver too, with a mixing in the same cabin of two homeship clusters which should not be within two metres of each other.  How many taxis in Bristol are like the London ones with a shield between the driver and passenger(s)?

One of the problems that GWR have is finding taxi firms willing to be called up to stations where rail replacement transport is needed at port notice.  Big reason being that taxi operators like the money to come through quickly and to be topped up with tips.  Sorry to say, but GWR has a shocking reputation for taking rather longer to pay than perhaps they should and taxis say "thank you, don't want that business".  Would another part of the First Group, or the local authority, be any quicker to pay or have an easier paperwork trail?

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Bmblbzzz
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« Reply #8 on: March 28, 2020, 09:26:00 am »

My perception - I live fairly close to the centroid of the built-up area of Bristol - is that the air tastes Alpine, and that I can actually see further.
Steady on! Though I must bear in mind that your hill is higher than ours... up there in the eternal snows of Stan and Drew... But yes, it's definitely cleaner and clearer. Quieter too! Though I wonder for how long? Traffic seems to be a bit more this morning (Sat) (based purely on the evidence of noise through the window so not exactly definitive... )
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Tuesday had come down through Dundrum and Foster Avenue, brine-fresh from sea-travel, a corn-yellow sun-drench that called forth the bees at an incustomary hour to their bumbling.
mjones
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« Reply #9 on: March 28, 2020, 07:26:15 pm »

Interestingly,  the WHO's advice is a minimum of 1m not 2m. This is easily achieved in those parks and beaches that were causing such outrage during the last week and isn't impossible even in taxis, with a  bit of thought.

https://www.who.int/emergencies/diseases/novel-coronavirus-2019/advice-for-public
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stuving
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« Reply #10 on: March 28, 2020, 08:08:47 pm »

Interestingly,  the WHO's advice is a minimum of 1m not 2m. This is easily achieved in those parks and beaches that were causing such outrage during the last week and isn't impossible even in taxis, with a  bit of thought.

https://www.who.int/emergencies/diseases/novel-coronavirus-2019/advice-for-public

The official "advice" (i.e. instruction) says 1 m in France, and 1.5 m in Germany and the Netherlands. I think the experts in some places think 1 m is a bit close, and here, on top of that, the government thinks we're too dumb to cope with fractions and the concept of "minimum" at the same time so they rounded it up. So it's an "aim for" rather than an "or more".
« Last Edit: March 28, 2020, 10:05:38 pm by stuving » Logged
TonyK
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« Reply #11 on: March 28, 2020, 09:23:31 pm »


Plus, I wonder about domestic heating?

The stuff coming out of a central heating boiler is mainly water and carbon dioxide if it's working properly, which may be offset by businesses not being heated - if they switched off. I recall looking down from Dundry during a temperature inversion a couple of decades ago and seeing a layer of filthy brown smog covering central Bristol  below, probably not noticeable from within it. That was probably nitrogen oxides from vehicles, and it will be that that is missing. That has certainly improved in the years since, and is probably now only "dreadful" on the official scale of pollution. Sadly, it will end, at least for a time, when traffic resumes.

I think the experts in some places think 1 m is as bit close, and here, on top of that, the government thinks we're too dumb to cope with fractions...

That's a bit rum - only half of we British are rubbish at fractions. The other two-thirds are fine.
« Last Edit: March 28, 2020, 09:34:36 pm by TonyK » Logged

Now, please!
martyjon
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« Reply #12 on: March 28, 2020, 09:36:22 pm »

I think the experts in some places think 1 m is as bit close, and here, on top of that, the government thinks we're too dumb to cope with fractions...

That's a bit rum - only half of we British are rubbish at fractions. The other two-thirds are fine.

Yea but 1.5 is in decimals so does that make the 0.7 fine too.
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ellendune
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« Reply #13 on: March 29, 2020, 08:31:12 am »

The stuff coming out of a central heating boiler is mainly water and carbon dioxide if it's working properly, which may be offset by businesses not being heated - if they switched off.

True for gas boilers not so true for oil central heating boilers.
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SandTEngineer
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« Reply #14 on: March 29, 2020, 10:15:41 am »

I expect that this helps as well (and not just in Bristol).... https://www.flightradar24.com/51.44,-0.45/7

« Last Edit: March 29, 2020, 10:36:32 am by SandTEngineer » Logged
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