The present generation of GA light aircraft pilots were probably in their cradles when stubble burning was in vogue a couple of decades ago. For weeks at a time any high pressure system trapped the products of combustion below the inversion level which could go up to FL100 on rare occasions. Visibility in the murk was miserable and there was much solid material in the form of ash that coated the surface of any aircraft whether on the ground or in the air. We endured and survived our excursions into the murk. Why not now.....?????
I fear the current risk averse society and ridiculous H&S legislation brings the need to warn of the danger we are exposed to by being alive never mind getting into the sky in a light aircraft.
Ashes to ashes, dust to dust. If the CAA does not get you then EASA must.
Cheers,
Reaper 69
PS - I renewed my DA on Thursday in a Magister at Old Warden and flew a low level aerobatic display practice last evening at Leicester in our Skybolt. Sheer unadulterated pleasure.