4 ms·
The dose makes the poison
by chriscappuccio 4y ago
The dose makes the poison
- kalimanzaro 4y ago[flagged]
- xadhominemx 4y ago> For vinyl chloride 250ppm for 4 hours is enough to give you tumors. No it’s not! You’ve completely made that up.
- kalimanzaro 4y agoTu quoque my friend. I merely coped & pasted wikipedia, wanna check the cite? >1972, Maltoni, another Italian researcher for the European vinyl chloride industry, found liver tumors (including angiosarcoma) from vinyl chloride exposures as low as 250 ppm for four hours a day.[30]
- xadhominemx 4y agoPer day!
- whamlastxmas 4y agoUnfortunately a single rail car can carry in excess of 30,000 gallons of dosing, and a single train can have several millions of gallons all together.
- Filligree 4y agoHow many ppm is that? Tongue in cheek, but assume it all got spread out over the city, I suppose.
- whamlastxmas 4y agoThis looks very difficult to calculate unless you're already familiar with the dynamics at play. Here's an extremely relevant paper from 2019 on the topic: https://www.consiltant.com/wp-content/uploads/2019/09/20190911-Health-effects-due-to-evaporation-of-liquids.pdf https://www.consiltant.com/wp-content/uploads/2019/09/201909... > the speed [of evaporation] is determined by, among other things, the pressure in the system, temperature of the substance, substance properties such as boiling point, vapor pressure, molecular weight and density and of course the size of the hole. Trying to do napkin math of dividing 30,000 gallons into the volume of air over a city under a certain altitude seems like a pointless exercise given the very long list of parameters that would highly influence its dispersion.