Christophe wrote: The toxic cocktail of fine particles generated by the combustion of oil, gas and especially coal is responsible for at least a quarter of deaths in half a dozen countries, all in Asia.
Christophe wrote:...
A new study, published February 9 in the scientific journal Environmental Research, estimates that 20% of deaths worldwide are linked to air pollution caused by fossil fuels.
Exnihiloest wrote:Christophe wrote:...
A new study, published February 9 in the scientific journal Environmental Research, estimates that 20% of deaths worldwide are linked to air pollution caused by fossil fuels.
Can we find it on the web? I am looking in particular for the method of calculation.
Calculations to estimate preventable deaths
To measure these diffuse effects, scientists seek to assess the life expectancy gained or the premature deaths that would be avoided if there were no pollution.
The method is based on a quantitative health impact assessment (EQIS) of air pollution, which is a consensus among specialists and at the level of the World Health Organization (WHO).
For the study published by Public Health France in 2016, the link between pollution and exposure to fine particles was established from information collected on “cohorts”, and in particular on the Gazel-air cohort, that is - say a group of 20 people followed by epidemiologists since the 000s.
Regardless of other factors linked to their lifestyle (smoking, being exposed to occupational risks, etc.), “the result shows, as in studies carried out for twenty years in Europe and North America, that the more people are exposed to fine particles, the more they die. This causal relationship is reflected in a statistical model, ”explains Mathilde Pascal, one of the authors of these studies.
The epidemiologists of Public Health France then collected the mortality by age group in all the municipalities in France as well as the concentrations of fine particles in the territory, by “grid” of 2 km per side. By applying the statistical model established from the French Gazel-air cohort, and the European Escape cohort - which establish a coefficient between exposure to pollution and mortality for all municipalities -, we can calculate the effects that a drop in the concentration of fine particles would have occurred in each municipality, region or throughout France. It is possible to count “preventable deaths” or gains in life expectancy at age XNUMX.
GuyGadeboisLeRetour wrote:Christophe wrote: The toxic cocktail of fine particles generated by the combustion of oil, gas and especially coal is responsible for at least a quarter of deaths in half a dozen countries, all in Asia.
Hey, the gas generates fine particles? I would be curious how much.
Christophe wrote:
And yes natural gas can also burn badly ...
Christophe wrote:No combustion is perfect down here ...
Obviously there are some dirtier than others.
The absence of wood in the article shocks me more ... than this passage on gas ...
RESTITUTION OF THE DECOMBIO STUDY ON POLLUTION IN THE ARVE VALLEY AND THE ARVE-PRE2A STUDY ON THE PERCEPTION OF THIS POLLUTION BY INHABITANTS.
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It is difficult to summarize a 160-page study in a few lines (available on the Ademe website), but it clearly identifies the main cause of the overruns of European standards in our valley; it is the combustion of biomass, or in more secular terms, the combustion of firewood that poses a problem. According to the report on certain winters, wood heating constitutes between 60 and 70% of the mass of fine particles recorded for certain sites, far ahead of all other factors. Remember that it is mainly in winter that we exceed the European thresholds for fine particles. During the other seasons, the pollutants are mainly due to transport and the ammonia from the spraying but in non-alarming concentrations.
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GuyGadeboisLeRetour wrote:A Corsican friend told me that at home (in the village) the old people put two dry logs for a green one because (they said) "it heats up longer" ...
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