What are the Chinese spraying on the ground for Coronavirus

I’ve seen multiple clips of people in hazmat unforms spraying stuff on ground. Like, on grass even. What is it and why are they doing that?

Business Insider suggests it is a low concentration bleach-and-water solution. The are probably doing it partly as genuine attempt to do something, and partly as theater. The actual usefulness is almost entirely theater.

That sucks for the grass.

My tap water is a low concentration bleach water solution.

Most pictures of people in hazmat uniforms spraying stuff on the ground are spraying weedkiller. Absent a really clear attribution and provenance, I’d start with that assumption.

Apparently it’s working. They’ve had 0 new cases outside the main province the last couple days (obviously what is reported and what is not reported are two different stories but still signs are pointing up).