Controlled studies of air borne particulate's impacts on a population are difficult to achieve. There have been such studies however that indicate higher mortality rates associated with particulate matter. It is a lot to wade through and above my medical paygrade but there are multiple scientific studies and results here:
http://www.nuceng.ca/refer/risk/A3110011.pdf
There is medical science that tells us fine particulates have a deleterious effect on human lung function. I don't think it is a stretch to say limiting those particulates limits those unhealthy effects. The Harvard Six study covered in the above link found that follow-ups that occurred after two of the six cities in the study had reduced their particulates also showed declines in related mortality.
Women in developing countries who routinely cook over wood or dung fires are known to suffer from that exposure, which would be extreme by comparison to typical North American exposures. As such, they serve as unfortunate medical study guinea pigs.
Global Alliance for Clean Cookstoves
Daily exposure to toxic smoke from traditional cooking practices is one of the world痴 biggest but least well-known killers. Penetrating deep into the lungs of its victims, this acrid smoke causes a range of deadly chronic and acute health effects such as child pneumonia, lung cancer, chronic obstructive pulmonary disease, and heart disease, as well as low birth-weights in children born to mothers whose pregnancies are spent breathing toxic fumes from traditional cookstoves. The evidence is robust and compelling: exposure to household air pollution (HAP) is responsible for a staggering number of preventable illnesses and deaths each year. Indeed, the World Health Organization (WHO) estimates that exposure to smoke from the simple act of cooking constitutes the fourth leading risk factor for disease in developing countries, and causes 4.3 million premature deaths per year exceeding deaths attributable to malaria or tuberculosis. In addition, tens of millions more fall sick with illnesses that could readily be prevented with improved adoption of clean and efficient cookstoves and fuels.
Thanks for that article Dave, I am interested in seeing any research. At the end of the report, the authors are reluctant to draw any firm conclusions (being responsible scientists), citing various dissenting opinions.
Something else to keep in mind about with that report - they are talking about Combustion Related Particulate Matter, in
general. I'd call that painting with a pretty broad brush.
It is pretty widely recognized today that firefighters have higher cancer rates than the general population. I've seen it suggested that despite much better protective gear, today's firefighters have even higher cancer rates than those of pre-WWII firefighters - the likely culprit being the combustion byproducts of plastics burning in modern fires.
Long way of saying...... it stands to reason that not all Particulate Matter is equally evil. Banning private burning of wood may not accomplish much, if the biggest problems are caused by commercial incineration of plastic.
Unfortunately, the first priority of legislators is to make their life easy, so they much prefer to take a One Size Fits All approach. Doesn't sit well with ur, nor me either.
I've said it before, but it bears repeating...... given the higher concentration of wood burning activity in European areas like ur mentions, we should be seeing epidemiological data indicating problems IF woodsmoke is a significant issue. Many Euro nations have a big incentive to deal with these problems (given they actually exist) early, as they typically have state-funded public medical systems. Not an issue on that side of the pond, AFAIK - I'm still receptive to being informed otherwise, aka keeping an open mind.
A lot of important progress has been made by programs that supply small efficient cookstoves to people in developing countries - that one item can make a big difference in people's lives.
So no, I'm not a big advocate of dung-fired cookstoves (

) , and I don't imagine there's much of that going on in Cali. (ur - perhaps up in Marin County ? :laughing: ).
Rgds, D.