Bike or Not

Is the DC environment amenable to biking to work?  I've gathered some links to find the answer.

Carcinogens

Is the commute likely to shorten my lifespan?

Hourly weather graphs

Hourly weather for the next 48 hours.

Trail flooding

Is the North East Branch trail likely to be under water? If the gauge is above 4ft, the answer is "yes."

North East Branch river gauge