ozone

There are holes in the ozone layer, in our ceilings and in our hearts.

City Hall said strong sunshine and hot weather are expected to trigger high ozone levels, with airflow from mainland Europe likely to worsen the situation.

California is home to five of the country’s 10 smoggiest places, as defined by levels of ozone pollution, and also to five of the worst 10 cities by particle pollution, according to the report.

They say that as more and more rockets are launched, the risks of harming the ozone layer increases.

And even craft that burn up completely might cause harm; researchers are concerned that the aerosolized metal could be damaging the ozone layer, reversing years of progress in protecting it.