..but ‘crowded indoor spaces have been shown to be associated with increased transmission.. determining what is due to proximity & poor hygiene practices, & what is ~due to poor ventilation~ though, is difficult’
^so, risk of spread due to poor ventilation is accepted by HPSC 2/
..but, no rules from HSPC, just ‘suggestions, specifically for commercial & public buildings’ ..& only for mech ventilation, which is small % of all buildings ..but ‘residential & healthcare settings fall outside the scope of HPSC document’ ..& very limited advice for schools 3/
..Dept of Education issued interim advice: ‘virus is spread by droplets & is not airborne so the physical separation is enough, even if in the same room’ ..but ‘ensure choir & music room is well ventilated’ (24 June, still on website) 4/ education.ie/en/covid-19/in…
..then Dept Ed updated advice but not in main ‘Reopening Schools’ document & after some schools had started:
‘opening of windows to introduce fresh air is very important & should continue via a proactive rather than reactive approach’ (26 Aug) 5/ assets.gov.ie/85177/d9643a37…
..meanwhile meat plants have ~no ventilation rules~ except ‘doors & windows (subject to appropriate fly screening) in canteen should remain open to allow greater air exchange‘ (16 Sept) 6/
..meanwhile construction industry COVID19 sector-led guidance is ~paywalled~ to CIF members ..& HSE construction guidance is only about new cases, nothing about prevention 8/
^some construction work is high risk & clusters have occurred on sites cif.ie/download/hse-p…
..meanwhile nursing homes, also high risk, HIQA report (21 July) says nothing about ventilation ..or opening windows, except that residents: ‘looked forward to ~window visits~ but wondered if they would ever be able to hug their families again’ 9/ hiqa.ie/reports-and-pu…
..meanwhile direct provision, another high risk setting, has guidance from Dept of Justice on cleaning surfaces & hand-washing, nothing on masks, airborne risks or importance of ventilation
..meanwhile HSE hospital advice:
‘Airborne transmission when infectious particles travel over long distances on air currents. Only particles of <5μm are small/light enough to travel this way’ /11
..meanwhile no advice from HSE/NPHET to homes & majority of all buildings (that are ‘naturally ventilated’ with windows) about clean air, ventilation & immediate, free preventative measures to stop ~known~ super-spread conditions
Clean air is more important than clean hands /12
How to stop a pandemic?
Stop the ~known~ super-spread conditions (crowds, indoors in poor ventilation)
‘Japan identified ventilation as critically important to preventing conditions for super-spread.. With population of 126m the total number of deaths from Covid-19 in Japan is lower than in Ireland’ irishtimes.com/opinion/why-go…
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#Covid19 High risk (yellow) zone at temperatures 5-11°C (spring & autumn)
An urgent public health message about clean indoor air & #ventilation (not fines & roadblocks) can have immediate impact on virus spread & prevent cases
WHO: ‘we are very concerned about rise in cases in Europe as it heads into winter’
‘Colder weather leads to behaviours that favour transmission of a respiratory virus- people tend to crowd indoors to stay warm, more often in poorly ventilated spaces’ smh.com.au/politics/feder…
‘overwhelming evidence that *inhalation* represents a major transmission route’
‘we urge public health officials to add clear guidance about importance of moving activities outdoors, improving indoor air & improving protection for high-risk workers’ science.sciencemag.org/content/early/…
Explainer: Why the changes to Irish fire regs for ‘open-plan flats’ put lives at risk
(could be a long thread, please bear with me, this is ~most critically important~ issue for discussions about our future housing, & it’s not getting any attention 1/
video is a recent rescue in Los Angeles, from 6th floor balcony of 25 storey building, in daylight, attended by 20 fire-trucks & rescue helicopter, in a fire-sprinklered & regulated building; 7 people & a baby injured, 10 homes burnt
(this is all important later in the thread) 2/
Typical 2-bedroom flat before reg changes;
note- balcony, hall separating kitchen from bedrooms, direct escape from bedrooms (not through kitchen), opening windows; + short main corridors with escape stairs every 6ish flats (kitchen, esp oil fire is a high-fire risk area) 3/
[Thread] Better than sprawl, better than high rise. Housing communities that are sustainable, affordable & beautiful places to live.
Norwich, UK. Award winning, low energy, low build cost, high density social housing 1/
Mid-rise, high-density housing in the Netherlands with safe streets, places to sit, spaces to play, priority for walking & cycling 2/
Cycle lanes in Copenhagen, city circulation without congestion through incremental low-cost investment in cycling infrastructure
Building heights (again)..
here’s an example of how Planners consider building heights. First by looking at existing buildings 1/ (Liberties Dublin, Local Area Plan)
& taking account of broader issues... ‘high rise residential development is market driven & relies upon sufficient numbers of purchasers prepared to pay a premium’ 2/
& looking in great detail at the impact, both on the immediate area & on the city (looking in & looking out) 3/