LA Weekly

How does this happen?

The researchers . . . carried out tests on two groups of male mice, one housed in a chamber with a filter to ensure they received pollution-free air and the others housed without a filter.

After four months both groups were mated with females not exposed to pollution. Males from the filtered air environment produced 34 per cent more male offspring than female. Those exposed to pollution produced 14 per cent fewer male offspring than female.

By what strange biological process does PM10 kill Y chromosomes?

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