Alabama

Alaska

Alberta

Arizona

Arkansas

British Columbia

California

Colorado

Connecticut

Delaware

District of Columbia

Florida

Georgia

Hawaii

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Manitoba

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Brunswick

New Hampshire

New Jersey

New Mexico

New York

Newfoundland and Labrador

North Carolina

North Dakota

Northwest Territories

Nova Scotia

Nunavut

Ohio

Oklahoma

Ontario

Oregon

Pennsylvania

Prince Edward Island

Québec

Rhode Island

Saskatchewan

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Wyoming

Yukon

None

A map shows wheat production in North America in metric tons. More than 5,000,000 is shaded dark red. 1,000,000 to 5,000,000 is shaded red. 100,000 to 1,000,000 is shaded orange. Less than 100,000 is shaded light orange.

Production of wheat in North America at the state or provincial level

US / CA States

North America

USDA

Wheat Production

Metric tons

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

World Health Organization

ug/m3

A map shows global lithium mines marked by green circles. High concentrations are found in the United States and South America. Moderate (5 to 6 mines) are found in Africa, Asia, and Europe, with fewer in Australia.

Locations of lithium mines worldwide

Lithium Mines

USGS Mineral Resources Data System

Acid Rain

African Languages

Agricultural Regions

Anthropogenic Biomes

Approximate Form and Extent of Outcrop of Carbonate Rocks

Aquifers: Distribution and Recharge

Areas Affected by Acid Rain

Areas Affected by Trypanosomiasis

Areas at Risk of Soil Degradation

Average Annual Precipitation

Average Annual Snowfall

Average Distribution of Dew Point Temperatures, January

Average Distribution of Dew Point Temperatures, July

Average Number of Hail Storms

Average Number of Tornado Incidences per Year (U.S.)

Bantu Migrations

Barren or Sparsely Vegetated Areas

Biomes

British Conquest of India

British Empire, Early 1920s

Caribbean Languages

Chinese Empires

Climate Zones

Cold Front

Colonial Possessions, 1914

Continental Shelf

Core Diamond Mining Areas

Days with Heavy Fog

Deforestation: Net Loss, 2000-2015

Deserts and Desertification Risk

Distribution of Calcium Carbonate in Modern Surface Sediments

Distribution of Neritic (Nearshore) and Pelagic (Open Ocean) Sediments

Drought Risk

Drug Cultivation and Production Regions

Early Sub-Saharan States and Empires

Earthquake Hazard Areas (U.S.)

Ecological Regions: Level 1 Regions

Ethnic and Cultural Regions

Ethnic Diversity

Ethnic Groups (Iraq and Iran)

European Settlement Expansion

Forest Types, 1900

Former Soviet Republics

Former Warsaw Pact Members

General Area of Sedimentary Formations Favorable to Oil

Geographic Areas Under Dispute

Geology Rock Type

Global Mean Temperature, January

Global Mean Temperature, July

Global Surface Warming: Best-Case Projections

Global Surface Warming: Worst-Case Projections (IPCC)

Global Surface Warming: Worst-Case Projections (NASA)

Global Temperature Change

Groundwater Salinization

Habitat Fragmentation

Herder's Environment

Human Occupation

Indigenous Languages

Insolation

Lake Desiccation

Land Cover

Language Families

Languages - Russian Domain

Language Subfamilies

Large Chinese Communities

Latin America, 1650

Latin America, 1830

Lightning Frequency

Major Drainage Basins

Major Foreign Enclaves and Exclaves

Major Hearths

Major Iron-Producing Areas in North America

Major Karst Regions

Major Landforms

Major Manufacturing Regions

Major Soil Orders

Major Territorial Acquisitions (U.S.)

Malaria Risk Areas

Mangrove swamps

Marine Sediment Thickness

Mean Sea-Surface Temperature

Muslim Populations

National Parks

Native American Culture Areas

Natural Gas Supply Areas

Ocean Bathymetry

Ocean Circulation Sinks

Ocean Climate Zones

Oil Shale or Tar Sands

Oil Slicks (1990s)

Original Tillers' Environment

Peak Drought Record, 2016 (U.S.)

Peak Drought Record (U.S.)

Petroleum and Natural Gas Production

Political Units, 1914

Political Units, 1950

Populist Governments Since 2000

	Wheat Production			Poor Urban Air Quality																																					Lithium Mines
	Class	Rank	Metric tons	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	Lithium
Alabama		32	2.35e+5
Alaska		50	0.00
Alberta		2	1.13e+7
Arkansas		33	2.16e+5
British Columbia		38	1.11e+5
Connecticut		55	0.00
Delaware		37	1.12e+5
District of Columbia		53	0.00
Hawaii		63	0.00
Iowa		57	0.00
Kentucky		19	8.16e+5
Maryland		27	3.61e+5
Mississippi		39	1.06e+5
Missouri		21	6.70e+5
Montana		7	3.79e+6
Nebraska		20	7.14e+5
New Brunswick		45	1.34e+4
New Hampshire		62	0.00
New York		34	1.96e+5
Newfoundland and Labrador		61	0.00
North Dakota		3	8.16e+6
Nova Scotia		46	1.25e+4
Nunavut		64	0.00
Pennsylvania		26	4.17e+5
Prince Edward Island		41	7.45e+4
Rhode Island		47	0.00
Utah		40	8.62e+4
Vermont		60	0.00
West Virginia		51	0.00
Wisconsin		25	5.09e+5
Yukon		52	0.00
Florida		49	0.00
Idaho		8	2.55e+6
Saskatchewan		1	1.48e+7	1
Texas		15	1.06e+6		1
Louisiana		58	0.00
Kansas		4	6.65e+6
New Jersey		43	4.19e+4			1
Michigan		18	9.37e+5
Georgia		35	1.58e+5
Oklahoma		12	1.87e+6
Ohio		16	1.00e+6
Indiana		24	5.29e+5
Minnesota		10	2.01e+6
Illinois		14	1.20e+6
Arizona		30	2.61e+5																																						15
Northwest Territories		59	0.00																																						4
Washington		6	3.92e+6																																						1
Wyoming		42	4.40e+4																																						5
Maine		56	0.00																																						7
Virginia		29	2.78e+5																																						1
North Carolina		23	6.53e+5																																						68
Oregon		13	1.33e+6																																						1
New Mexico		44	3.93e+4																																						9
South Carolina		36	1.55e+5																																						1
Colorado		17	9.73e+5																																						6
Nevada		54	0.00																																						10
Massachusetts		48	0.00																																						14
Québec		28	3.47e+5																																						5
Manitoba		5	4.76e+6																																						8
Tennessee		22	6.66e+5																																						1
Ontario		9	2.40e+6																																						5
California		31	2.44e+5																																						9
South Dakota		11	1.95e+6																																						32

MapMaster 3

Wheat Production