There were sharp increases in some cancers, however from very small bases and of cancers with very low mortality, as far as I recall.

I think it's worth assuming some reduction in life expectancy for some people, but notably the estimates of lost years of life have dropped year by year, and will likely end up being negligible.

I've said it before: we could have a Chernobyl every year, and it'd still be worth it (reducing deaths) if it got us off coal sooner...