Today, the Oakland School District announced that school is cancelled tomorrow because the air is so dangerous. It’s been bad for a week. It got worse today. And it’s supposed to be even worse tomorrow. Why is the air so bad? Because California is on fire.
The nearest fire — called Camp Fire — is over 100 miles away. This seems like a long way away in my head, and in some ways it is. For example, it’s far enough away that my home is not currently at risk of burning down. But it’s still close enough to have a major impact on the air.
This is the first time I’ve had to get to know air quality numbers and what they mean. If you’re curious here’s a couple of key numbers (and a chart):