This is a program that loads data set information on the 3 data set I found.

PM2.5: Consistcts air quality data from 2000 - 2018 in different county in different states.

Bike Rental: Bike rental data with various of attributes from 2011 - 2012.

COVID19: COVID19 infection data in united states in different states from 2020/1 till now.

Here are the Github Gist links:

1.PM2.5

2.Bike Rental

3.COVID19