Health

Air Quality Index

Lutherville Timonium, MD 21093

Air Quality

Today's Air Quality - Metropolitan Baltimore, MD
Date	Code	AQI Level	Major Pollutant
Air Quality Forecast - Metropolitan Baltimore, MD
Date	Code	AQI Level	Major Pollutant
2/12/2012		32	Small Particulate Matter
2/13/2012		32	Small Particulate Matter
2/14/2012		32	Small Particulate Matter

Air Quality Index (AQI) Scale
AQI Color	AQI Category	AQI Numbers
	Good	0-50
	Moderate	51-100
	Unhealthy for Sensitive Groups	101-150
	Unhealthy	151-200
	Very Unhealthy	201-300
	Hazardous	301-500+

High Temps

Find out the high temps for your area.
View Temp Map

Hourly Forecast for Lutherville Timonium, MD 21093

Time	Conditions	Sky Cover	Chance of Precip.	Heat Index Wind Chill	Wind
Saturday, February 11, 2012
9 am	36° F	82%	71%	32° F	From NNW 5 mph
10 am	37° F	77%	71%	32° F	From NNW 6 mph
View Next 12 Hours

Weather News

Other Top Weather Headlines

Dangerous Cold, Lake-Effect Snow Slam Midwest

Dangerous cold and lake-effect snow will make a rare appearance not seen much this winter from the Midwest into the…More >
Bitter Cold, Snow Take Aim At Northeast, Mid-Atlantic

A winter storm will produce accumulating snow and bitterly cold temperatures across much of the Eastern Seaboard this…More >
Twin Cities Winter: Fourth Warmest on Record

This winter in the Twin Cities is now the fourth warmest on record, according to the state climatology office.…More >

Watch Videocast >

More Weather News >

WeatherBug Featured Content

View live traffic camera images from cities around the U.S.

It's cold and flu season. Get facts, symptoms and view the latest outbreaks.

Get local severe weather alerts right on your mobile phone.

Are you Elite? Mobile weather has never looked so good.

WeatherBug’s Traffic Section will prepare you for your daily commute with live traffic camera images from cities around the U.S. Choose between different intersections to view traffic and road conditions around your location. More >

Traffic Cameras

What is AQI?

The AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health concerns you should be aware of. The AQI focuses on health effects that can happen within a few hours or days after breathing polluted air. EPA uses the AQI for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide. For each of these pollutants, EPA has established national air quality standards to protect against harmful health. (EPA-454K-03-002, August 2003, http://www.airnow.gov/)