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Orla Hegarty Profile picture
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10 Apr, 4 tweets, 3 min read
Absolutely unbelievable that Chair of ‘@WHO Infection Prevention & Control Research & Development Expert Group for #COVID19’ does NOT recommend higher grade masks because “there are harms such as acne, eczema, conjunctivitis” (53 mins) #TransmissionMatters ucalgary.yuja.com/V/Video?v=3323…
Dr Conly has previously expressed concern that higher grade masks are “more costly, require fit testing, necessitate additional time & resources, do not provide an adequate fit in individuals with beards, & may provide a false sense of security” #COVID19 aricjournal.biomedcentral.com/articles/10.11…
(clip here) higher grade masks not recommended by WHO infection control expert because of risk of “acne” @WHO @DrMikeRyan #TransmissionMatters #Covid19
Link to expert commentary

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More from @Orla_Hegarty

Orla Hegarty Profile picture
10 Apr
Yet again, #Covid19 in #construction misreported @TheBusinessRTE

35 construction outbreaks in last 4 months (while sector mostly closed) of which 18 are currently ongoing & 4 are new construction outbreaks w/e 3 April

Let’s be open about the risks so that we can eliminate them
As with many other sectors, #Covid19 ‘risk’ to construction companies & employers ≠ #COVID19 risk to Ireland from that sector

When sectoral employers say they are “safe” they mean within their specific legal H&S obligations as employers, & this is small part of the full picture
employer H&S responsibilities stop at the gate & generally only extend to their own employees.. not sub-contractors, service providers, ‘bogus’ self employed etc.. or to transport, commuting, shopping, lodgings & other risks to a community that arise from activity in that sector
Read 5 tweets
Orla Hegarty Profile picture
9 Apr
Every supermarket reply says cleaning when ~there’s 1 in 10,000 chance of virus from surfaces~

Not mention of infected air, which is how #Covid19 actually transmits

1 year into a pandemic! @Aldi_Ireland @lidl_ireland @dunnesstores @TescoIrl @SuperValuIRL irishmirror.ie/lifestyle/safe…
‘risk of SARS-CoV-2 infection via fomite transmission route is low, & generally less than 1 in 10,000, which means that each contact with a contaminated surface has less than a 1 in 10,000 chance of causing an infection’
CENTRE FOR DISEASE CONTROL (USA) cdc.gov/coronavirus/20…
my spot check showed that most supermarkets likely have good air quality already.
They can demonstrate low risk to their customers & staff (H&S) with a €200 carbon dioxide CO2 meter
Read 4 tweets
Orla Hegarty Profile picture
5 Apr
‘dogma that increasing housing supply will unlock issues is becoming increasingly jaded in face of overwhelmingly evidence

Not once in recent history has supply improved affordability, & constant erosion of affordability lies at the heart of the problem’ irishtimes.com/business/econo…
Economist @DrCameronMurray supply/demand analysis suggests that ‘constraints* on density increase optimal rate of supply by reducing return to delaying development’

*constraints meaning stable Planning policy, not lowering standards or raising height caps
‘The policy lessons are (1) the relationship between demand growth & optimal supply rate limits ability for market supply to reduce prices & (2) increasing the cost to delaying housing development is primary way to increase market rate of housing supply’ osf.io/7n8rj/
Read 7 tweets
Orla Hegarty Profile picture
4 Apr
‘Dublin City Council, South Dublin County Council & Dún Laoghaire-Rathdown County Council *did not build a single home in 2020*, according to @DeptHousingIRL data. Fingal led as developer on 24 homes, & Cork City Council built only 9 homes’ @killianwoods
businesspost.ie/houses/over-75…
In 2019, leases were costing €7,473/ home/ year

New lease deals are costing Dublin City €17,155/yr.. & Dún Laoghaire-Rathdown County Council €28,310/yr

..state is paying investors €2,359/month for social housing apartments.. amount equivalent to mortgage on €500,000 home
“half a million euro” social home is now established in policy, & at a time when the Minister confirms an all-in cost of less than €250,000 nationally, for two-bedroom apartment developed by local authorities
irishtimes.com/opinion/progra…
Read 4 tweets
Orla Hegarty Profile picture
2 Apr
Some people asking ‘what would architects know about viruses?’ ... so, in reply 1/ Image
Outdoors spread is too low to sustain a pandemic as the R rate is <1, so pandemic would wane naturally

If we lived outdoor there would be no pandemic

So, suppressing this pandemic is about buildings (& vehicles) where people spend most of their time 2/
Architects are trained to design buildings for people

This includes knowledge & understanding of human behaviour, environmental science, building safety
.. & public health (incl air quality & ventilation) 3/
Read 10 tweets
Orla Hegarty Profile picture
28 Mar
Ventilation in schools, 1850:
‘Let is suppose the case of a schoolroom containing 10,000 cubic feet (50 x 20 x 10’)* of perfectly pure air with 200 pupils. To each of them will be allowed 10 cubic feet of air per minute...’. 1/
*283m3 (15 x 6 x 3m)
‘..there would be 50 [cubic] feet for each pupil & air of the room would be rendered unfit for respiration by carbonic acid [CO2] alone in ~just 5 minutes~.. at the end of 5 minutes pupils begin to inhale again & again the excrementitious matter from their own & others bodies’ 2/
‘..at end of one hour, 84 ounces (2.4kg) of this poison would be held in solution in the air..& be constantly going the round of the circulation, sowing the seeds of death’ ‘the oxygen would be entirely exhausted in 14 or 15 hours.. many pupils would not be living long before’ 3/
Read 10 tweets

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