Need help with RAAN Air Quality Scrape Sensor

Configuration
1

I’m having trouble getting a scrape sensor to work. Can’t seem to get the selector right. I’m trying to get the current 2.5 PM value, but just get an unable to extract from HTML in the log. I used the developer tools in Chrome to get the selector. Any help would be appreciated. Thanks.

- platform: scrape
  resource: http://www.valleyair.org/programs/raan/raan_index.htm?x=Turlock
  name: RAAN_PM25
  select: "#tblCurrentConditions > tbody > tr:nth-child(3) > td.tblCurrentConditionsTD3 > p"
  value_template: '{{ value.split(" ")[0] }}'
  # Request 15 minutes
  scan_interval: 900
2

I think the problem is that the data is populated with JavaScript.