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#hazard

2 posts2 participants1 post today
Public
Steve's Place

PBOT does not want you to die.

"Stay away!
The area is NOT SAFE for anyone

(April 4, 2025) The Portland Bureau of Transportation advises the traveling public that SW Tichner Drive will remain closed until further notice, between West Burnside and SW Kingston Avenue, due to continued risk from a landslide.

It is crucial for the public to avoid the area, which remains at risk of another slide at any time. Do not go past any barricades.

On Saturday, March 29, hundreds of cubic yards of rocky material broke free from a steep, 100-foot tall rock face. The dislodged rock mass landed primarily in a PBOT sand storage lot below, but some rocks the size of bowling balls spilled onto SW Tichner Drive.

A similar mass adjacent to that one is poised to fall, this time directly onto the roadway. It could fall at any time—without prior warning.

We ask the public to avoid the area and expect delays if traveling in the vicinity near Washington Park. Follow the signed detour route via SW Vista Avenue and SW Park Place through Washington Park.

Use caution and travel slowly on the detour route, which may have more traffic than normal.


Stay away! Acute risk remains of large rocks to fall at any time

Landslides are highly unpredictable and can be very dangerous. We have closed SW Tichner Drive for safety and ask that the public stay a safe distance from the area.

It is closed to all travel, including anyone driving, walking, biking or using a mobility device.

PBOT engineers are monitoring the area closely and have observed indications of additional movement and rockfall this week.

PBOT is consulting with geotechnical engineers with the Bureau of Environmental Services on next steps. PBOT also expects to hire a contractor that specializes in stabilizing and protecting sheer rock walls, with special materials, equipment and techniques.

Once it is safe for city crews to work at the site, PBOT will need to orchestrate the removal of many dump truck loads of material to be loaded and trucked out of the area.

There is no estimate for how long it will take to accomplish the work needed to make the area safe.

The roadway will be re-opened once it is determined the area is stable and protective measures are in place.

PBOT is the city's lead for response to flooding and landslides that impact city streets. In recent months, crews have cleared several slides that had impacts on city streets.

Barricades and signs mark the closure of SW Tichner Drive. The area is not safe for travel by any mode of transportation because of a landslide. Photo by PBOT.
Stay informed with email, text alerts and report road hazards to PBOT

Sign up for email or SMS text message updates on traffic advisories, winter weather tips and more.

Notices are also posted to PBOT's X/Twitter account @PBOTinfo and web site portland.gov/transportation

For more information on landslides in Portland, see the PBOT website on landslides, flooding and sandbags.

Report road hazards including downed trees or water blocking travel lanes to PBOT’s 24-hour hotline: pdxroads@portlandoregon.gov or 503-823-1700."

#PBOT#Portland#Oregon
Public
Nando161

Remember that #WHO says #working 55 hours or more per week is a serious #health #hazard
who.int/news/item/17-05-2021-l

www.who.intLong working hours increasing deaths from heart disease and stroke: WHO, ILOLong working hours led to 745 000 deaths from stroke and ischemic heart disease in 2016, a 29 per cent increase since 2000, according to the latest estimates by the World Health Organization and the International Labour Organization published in Environment International today.  In a first global analysis of the loss of life and health associated with working long hours, WHO and ILO estimate that, in 2016, 398 000 people died from stroke and 347 000 from heart disease as a result of having worked at least 55 hours a week. Between 2000 and 2016, the number of deaths from heart disease due to working long hours increased by 42%, and from stroke by 19%.This work-related disease burden is particularly significant in men (72% of deaths occurred among males), people living in the Western Pacific and South-East Asia regions, and middle-aged or older workers. Most of the deaths recorded were among people dying aged 60-79 years, who had worked for 55 hours or more per week between the ages of 45 and 74 years.With working long hours now known to be responsible for about one-third of the total estimated work-related burden of disease, it is established as the risk factor with the largest occupational disease burden. This shifts thinking towards a relatively new and more psychosocial occupational risk factor to human health.The study concludes that working 55 or more hours per week is associated with an estimated 35% higher risk of a stroke and a 17% higher risk of dying from ischemic heart disease, compared to working 35-40 hours a week.Further, the number of people working long hours is increasing, and currently stands at 9% of the total population globally.  This trend puts even more people at risk of work-related disability and early death.The new analysis comes as the COVID-19 pandemic shines a spotlight on managing working hours; the pandemic is accelerating developments that could feed the trend towards increased working time.“The COVID-19 pandemic has significantly changed the way many people work,“ said Dr Tedros Adhanom Ghebreyesus, WHO Director-General. "Teleworking has become the norm in many industries, often blurring the boundaries between home and work. In addition, many businesses have been forced to scale back or shut down operations to save money, and people who are still on the payroll end up working longer hours. No job is worth the risk of stroke or heart disease. Governments, employers and workers need to work together to agree on limits to protect the health of workers.”“Working 55 hours or more per week is a serious health hazard,” added Dr Maria Neira, Director, Department of Environment, Climate Change and Health, at the World Health Organization. “It’s time that we all, governments, employers, and employees wake up to the fact that long working hours can lead to premature death”.Governments, employers and workers can take the following actions to protect workers’ health:   governments can introduce, implement and enforce laws, regulations and policies that ban mandatory overtime and ensure maximum limits on working time;bipartite or collective bargaining agreements between employers and workers’ associations can arrange working time to be more flexible, while at the same time agreeing on a maximum number of working hours;employees could share working hours to ensure that numbers of hours worked do not climb above 55 or more per week.    Note for editors:Two systematic reviews and meta-analyses of the latest evidence were conducted for this study. Data from 37 studies on ischemic heart disease covering more than 768 000 participants and 22 studies on stroke covering more than 839 000 participants were synthesized. The study covered global, regional and national levels, and was based on data from more than 2300 surveys collected in 154 countries from 1970-2018.
Public *
Giuseppe Bilotta

I'm going to take advantage of the current #eruption on Mt #Etna to discuss some of the challenges of #modelling #lava flows. Buckle up (or just silence me) because this is going to be a long thread.

First of all, why do we want to model lava flows? The answer most definitely isn't «because we can», since —as I'm going to explain momentarily— we actually cannot. Still having an idea about how lava flows and sets in place is a powerful tool for the assessment (and possibly mitigation) of the associated #hazard and #risk: if we can tell how lava flows, we can tell which areas are going to be reached by the lava, and hopefully also improve the design of tactical and strategic actions that can be taken to minimize the damage.

(Of course, whether or not those actions will then be taken is an entirely different matter, but that's mostly politics, not science.)

1/

#MtEtna#simulation#CFD
Public
Steve

"For the past several years, I’ve been telling my friends what I’m going to tell you: Throw out your black plastic spatula. In a world of plastic consumer goods, avoiding the material entirely requires the fervor of a religious conversion. But getting rid of black plastic kitchen utensils is a low-stakes move, and worth it. Cooking with any plastic is a dubious enterprise, because heat encourages potentially harmful plastic compounds to migrate out of the polymers and potentially into the food. But, as Andrew Turner, a biochemist at the University of Plymouth recently told me, black plastic is particularly crucial to avoid..."

#HealthHazard #Plastic #BlackPlastic #Cooking
#Cooking #Hazard

archive.ph/2024.11.01-003146/h

Public
Sabine.Pahl

#RichardThompson from #UniversityofPlymouth is summarising the last 20 years of #Microplastic research, taking us back to the very start where his boss wasn't convinced of the new area of research and it had to take place out of hours! We need more focus on #upstream measures & solutions, and we need to do it quickly. We need a #hazard-based approach and effective monitoring of interventions. Inspirational as always and the cinema here at the #MICRO2024 conference is rammed #PlasticPollution

A full cinema room with a screen and speaker at the back
Public
8Petros [$ rm -rv /capitalism/*]

#losowość #prawdopodobieństwo #kostka #paradoks #hazard #GetRichScheme #ChangeMyMind

W szkole wpojono mi przekonanie, że - w warunkach idealnych - prawdziwe są następujące twierdzenia:

1. Prawdopodobieństwo uzyskania danej liczby l ∈ {1,2,3,4,5,6} w pojedynczym rzucie kostką sześcienną 1K6 wynosi 1/6.

2. Przy odpowiednio długiej serii n rzutów (nK6) częstość występowania każdej z liczb l wyniesie c(l) = n/6.

A teraz pomyślmy:

a) W rzucie (n-4)K6 mamy już tylko 5 liczb, których możemy oczekiwać, jeśli twierdzenie 2 jest prawdziwe. I ta pula maleje aż do rzutu n-1K6, kiedy mamy już tylko jedną liczbę potrzebną do wypełnienia się twierdzenia 2.

b) Ponieważ n nie jest wyliczalne teoretycznie (jeśli jest, niech ktoś mnie poprawi), możemy je poznać wyłącznie empirycznie (indukcyjnie), wykonując serię N rzutów i badając ich wyniki. Dla różnych wartości n (6=<n=<N) wartości c(l) dla każdej z liczb będą oscylować wokół n/6, co pozwoli nam wykryć takie wartości n, przy których spełnienie twierdzenia jest najbardziej prawdopodobne.

c) Jeśli takich wartości nie wykryjemy, oznaczać to będzie, że założona wartość N jest zbyt mała i w jej zakresie występowanie danych wartości jest nielosowe. Będzie się to przejawiać w rozkładzie wartości c(l) w macierzy wartości l, wskazującym na "nadreprezentację" lub "niedoreprezentację" poszczególnych liczb dla danego n.

d) Zarówno spełnienie twierdzenia (b), jak (c) daje nam lepsze niż 1/6 szanse przewidzenia wyniku rzutu n na podstawie wyników serii (n-1)k6.

Konkluzja:

Aplikując praktycznie powyższe twierdzenia i pod warunkiem dostępu do odpowiednio długiej historii wyników dowolnego procesu losowego, możemy znacząco zwiększyć trafność przewidywań wyników jego kolejnej iteracji.

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