Utah

Florida

Idaho

Wyoming

Montana

Texas

Louisiana

North Carolina

Alabama

Pennsylvania

Tennessee

California

Ohio

Iowa

None

<p>A world map shows phosphate mining locations marked by green circles with "P h." Key areas include the U S, Mexico, Brazil, Venezuela, Morocco, Egypt, South Africa, China, and Australia. Major clusters are in the U S, eastern China, and northern Africa.</p>

Phosphate Mines

World

USGS

Arizona

Maine

Saskatchewan

New Mexico

Kansas

New Jersey

Michigan

Colorado

Nevada

Georgia

Manitoba

Oklahoma

Indiana

Minnesota

Illinois

The map shows urban air quality in terms of micrograms of particulate matter per cubic meter of air. For the purposes of this description, the five categories on the map are simplified to less 80 micrograms per cubic meter; between 80 and 200 micrograms per cubic meter; and more than 200 micrograms per cubic meter. In North America, there are several areas with multiple locations where air quality is less than 80 micrograms: in Canada, near Vancouver, British Columbia; in Alberta; and in southern Ontario and Quebec near the Great Lakes and St. Lawrence River. In the United States, areas with air pollution in this range occur in mainly in California and in the Midwest and Northeast. A few scattered locations in Mexico, Central America, and the Caribbean (Jamaica) also have pollution in this range. In South America, air quality less than 80 micrograms per cubic meter occurs in widely scattered locations, such as Caracas, Venezuela; Colombia; Ecuador; Bolivia; northern and central Chile; Buenos Aires, Argentina; and north of Rio de Janeiro, Brazil. Most of Western and Central Europe have air pollution of less than 80 micrograms per cubic meter. Exceptions include Ireland, Portugal, and Scandinavia. (In Russia, air pollution is at this level in Moscow, but east of the Urals in Siberia, there are also sites that are more polluted—between 80 and 200 micrograms. Africa has relatively little air pollution of this type, areas less than 80 micrograms include Liberia, Tanzania, Madagascar, and South Africa (the area around Johannesburg). In Southwest Asia, Turkey, Lebanon, Israel, and Cyprus have multiple sites less than 80 micrograms per cubic meter. However, Iran and the Persian Gulf states (Bahrain, Qatar, the United Arab Emirates) have multiple sites between 80 and 200 micrograms, and Iraq and Bahrain have sites that are higher than 200 micrograms. Apart from Kabul, Afghanistan, which is higher than 200 micrograms per cubic meter, there are no countries in Central Asia that have poor urban air quality according to the criteria used here. In northern Pakistan, India, and Bangladesh, there are cities with poor urban air quality—ranging from 80 to more than 200 micrograms per cubic meter. In southern India, Sri Lanka, and Nepal, pollution levels range from below 80 up to 200 micrograms per cubic meter. In Southeast Asia, pollution in Myanmar, Thailand, Laos, Vietnam, and Indonesia is generally less than 80 micrograms, except in the northern Philippines, where it is between 80 and 200. In the cities of southern and western China, pollution is less than 80 micrograms per cubic meter, except in far western Urumqi, which is between 80 and 200 micrograms. In eastern and northern China urban air pollution increases to between 80 and 200 micrograms. Mongolia has a few locations less than 80 micrograms per cubic meter and others between 80 and 200 micrograms. South Korea has numerous cities with pollution less than 80, whereas in Japan, Tokyo is the only city in this category. In Oceania, only New Zealand is identified as having poor urban air quality, with two locations on the South Island less than 80 micrograms per cubic meter.

Ambient (outdoor) air pollution levels represented by annual mean concentration of particulate matter smaller than 10 (PM₁₀), for cities of the world with more than 100,000 inhabitants

Poor Urban Air Quality

World Health Organization

ug/m3

Alaska

District of Columbia

New Hampshire

Rhode Island

Vermont

Washington

North Dakota

Kentucky

Virginia

Delaware

Mississippi

West Virginia

Nebraska

Missouri

Hawaii

Oregon

Wisconsin

South Carolina

Connecticut

Massachusetts

New York

Maryland

Arkansas

South Dakota

<p>School shootings in the U.S. are indicated by red dots, with a high concentration in the eastern half, particularly in Texas, Florida, and along the East Coast. Some dots are scattered in Puerto Rico, Alaska, and Hawaii.</p>

Display by:	Phosphate Mines	Poor Urban Air Quality																																					School Shootings (U.S.)
	Phosphate Mines	Regina	Houston	Philadelphia	Oklahoma City	San Antonio	Boulder	Wichita	Portland	Irvine	Minneapolis	Boise	Winnipeg	Spring Hill	Greeley	St. Louis	Detroit	West Palm Beach	Columbus	Augusta	McAllen	Topeka	Las Cruces	Bakersfield	Oceanside	Reno	Indianapolis	Stockton	Baton Rouge	Glendale	Salinas	Trenton	Aurora	Modesto	Nogales	Rock Island	Fresno	Covington	School Shootings (US)
Saskatchewan		1
Manitoba
Alaska																																							1
Arizona																																							1
Utah	7																																						1
District of Columbia																																							1
Florida	40																																						1
Idaho	6																																						1
New Hampshire																																							1
Rhode Island																																							1
Vermont																																							1
Washington																																							1
Wyoming	1																																						1
Montana	12																																						1
Maine																																							1
North Dakota																																							1
Kentucky																																							1
Virginia																																							1
Delaware																																							2
Mississippi																																							3
West Virginia																																							1
Nebraska																																							1
Texas	5		1																																				1
Missouri																																							1
Louisiana	4																																						1
Hawaii																																							1
North Carolina	3																																						1
Oregon																																							1
Alabama	2																																						2
New Mexico																																							1
Kansas																																							1
Wisconsin																																							1
New Jersey				1																																			2
South Carolina																																							1
Michigan																																							1
Connecticut																																							2
Pennsylvania	1																																						1
Colorado																																							1
Nevada																																							2
Massachusetts																																							1
Georgia																																							1
New York																																							1
Maryland																																							1
Oklahoma																																							1
Tennessee	30																																						1
California	2																																						1
Arkansas																																							1
South Dakota																																							1
Ohio	1																																						2
Indiana																																							3
Minnesota																																							1
Iowa	1																																						1
Illinois																																							2

MapMaster 3

Phosphate Mines