Just seems unlikely to me that any lingering chlorine particles would be dropping into New England 10 days later in high enough amounts that it would be noticeable. Although it does not take a high ppm to be picked up by one's schnozz - 0.02-0.31 parts per million (ppm)
I thought the fires/cloud from that were done days ago. Maybe connected but not so sure. Maybe chlorine particles went up high enough and lingered... HCl raining from the skies?
After ski club last night I was driving home up Route 2 in the KFIT area. It was raining and the drops on the windshield definitely looked odd. I almost was thinking cats paws but it was 50F out.
Disturbing