CLAREMONT, N.H. — New Hampshire Republican Gov. Chris Sununu has signed a bill aimed at preventing childhood lead poisoning.

The new law requires blood testing for lead in all children age 2 and under and lowers the threshold at which the state must carry out tests of an apartment to determine whether landlords must remove lead hazards. It also provides $6 million in loan guarantees for property owners for abatement projects.

Lead paint was banned in 1978, but hazards remain in states with old housing stock like New Hampshire. Sununu has praised the bill as a bipartisan, commonsense compromise that will help families ensure their children are as healthy as possible.

He signed the bill Thursday in Claremont.