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Data source: Environmental Protection Agency
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Air pollution in Washington, D.C. correlates with...

VariableCorrelationYearsHas img?
Associates degrees awarded in Business and managementr=0.9411yrsNo
The distance between Neptune and the Sunr=0.9344yrsYes!
The distance between Neptune and the moonr=0.9344yrsYes!
Popularity of the first name Marcr=0.9243yrsNo
Arson in United Statesr=0.938yrsNo
Kerosene used in Perur=0.942yrsYes!
Ice cream consumptionr=0.932yrsNo
Milk consumptionr=0.8932yrsNo
Gasoline pumped in Austriar=0.8943yrsNo
Robberies in the USr=0.8438yrsNo
Violent crime ratesr=0.8138yrsYes!



Air pollution in Washington, D.C. also correlates with...

VariableCorrelationYearsSys. Score
The distance between Neptune and Earthr=0.9344yrs381
Popularity of the first name Josephr=0.9443yrs378
Popularity of the first name Chasityr=0.9443yrs378
Popularity of the first name Jonathanr=0.9343yrs377
Physical album shipment volume in the United Statesr=0.924yrs375
Viewership count for Days of Our Livesr=0.8942yrs366
Burglary rates in the USr=0.8838yrs364
Remaining Forest Cover in the Brazilian Amazonr=0.8936yrs362
Kerosene used globallyr=0.942yrs362
Gasoline pumped in Francer=0.943yrs362
The distance between Neptune and Mercuryr=0.9244yrs350
Popularity of the first name Rener=0.9343yrs347
Popularity of the first name Johnnar=0.9343yrs337
Cottage cheese consumptionr=0.8632yrs334
GMO use in cottonr=0.8923yrs326
Popularity of the first name Matthewr=0.9243yrs326
Number of edits to the Wikipedia article for Thanksgivingr=0.8516yrs324
US household spending on clothin for womenr=0.8823yrs321
US household spending on clothingr=0.8723yrs320
US household spending on clothing for menr=0.8723yrs320
US household spending on prescription drugsr=0.8623yrs318
Kerosene used in Thailandr=0.8742yrs317
Popularity of the first name Joshuar=0.9243yrs316
Kerosene used in Brazilr=0.8642yrs306
Popularity of the first name Ryanr=0.9243yrs306
Sherbet consumptionr=0.8532yrs303
Kerosene used in Egyptr=0.8642yrs296
Popularity of the first name Sarahr=0.9243yrs296
Kerosene used in Macaur=0.8642yrs286
Popularity of the first name Williamr=0.9243yrs286
Portion of all US dairy skim-solids allocated to the production of frozen dairy productsr=0.8922yrs278
Popularity of the first name Elizabethr=0.9243yrs276
Petroluem consumption in Germanyr=0.8732yrs267
US average milk-fat content of frozen dairy productsr=0.8822yrs267
Popularity of the first name Bridgetr=0.9243yrs266
NASA's budget as a percentage of the total US Federal Budgetr=0.8544yrs258
US average milk-fat content of cottage cheeser=0.8822yrs257
Gasoline pumped in Germanyr=0.8632yrs256
Popularity of the first name Cindyr=0.9243yrs256
Portion of all US dairy skim-solids allocated to the production of fluid beverage milkr=0.8722yrs246
AIG's stock price (AIG)r=0.8222yrs246
Lloyds Banking Group's stock price (LYG)r=0.8222yrs246
Gasoline pumped in Sloveniar=0.8631yrs244
Citigroup's stock price (C)r=0.822yrs243
US average milk-fat content of milk fat and skim solids byproduct fluid beverage milkr=0.8722yrs236
Popularity of the first name Darrenr=0.9243yrs236
US birth rates of triplets or morer=0.8220yrs232
Liquefied petroleum gas used in Greenlandr=0.8822yrs228
U.S. intercountry adoptionsr=0.8223yrs227
Cigarette Smoking Rate for US adultsr=0.8321yrs226
US Employment Rater=0.7533yrs226
Popularity of the first name Ramonr=0.9243yrs226
Burglaries in District of Columbiar=0.8538yrs224
Emmy Awards Ceremony viewershipr=0.6736yrs218
Total number of automotive recallsr=-0.943yrs216
Popularity of the first name Stever=0.9243yrs216
Motor vehicle theftsr=0.8538yrs214
Asthma attacks in American childrenr=0.7723yrs214
Automotive recalls issued by BMW of North Americar=-0.8343yrs212
Automotive recalls for issues with the Electrical Systemr=-0.8643yrs210
Customer satisfaction with Whirlpoolr=0.7328yrs210
US household spending on booksr=0.8423yrs210
Popularity of the first name Arlener=0.9243yrs206
Automotive recalls for issues with the Power Trainr=-0.8243yrs206
US household spending on processed fruitsr=0.8123yrs206
Automotive recalls issued by Hondar=-0.7543yrs204
Automotive recalls issued by Nissan North Americar=-0.7543yrs204
US household spending on fresh milk and creamr=0.823yrs204
US household spending on mortgage interest and chargesr=0.823yrs204
US household spending on vehicle insurancer=0.823yrs204
Automotive recalls issued by Hyundai Motor Americar=-0.7937yrs202
Popularity of the first name Darinr=0.9243yrs196
Popularity of the first name Daynar=0.9243yrs186
Orange's stock price (ORAN)r=0.7822yrs180
The distance between Neptune and Venusr=0.7344yrs176
Robberies in District of Columbiar=0.6838yrs168
Barclays' stock price (BCS)r=0.7722yrs168
Deutsche Bank Aktiengesellschaft's stock price (DB)r=0.7622yrs157
US milk fat used to produce fluid beverage milkr=0.8322yrs138
Hydopower energy generated in Denmarkr=0.8442yrs130
Gasoline pumped in Norwayr=0.8543yrs120
Average milk produced per cow in the USr=-0.9243yrs119
Petroluem consumption in Denmarkr=0.8443yrs108
Frozen yogurt consumptionr=0.7532yrs103
Petroluem consumption in Italyr=0.8443yrs98
Average number of milk cows in the United Statesr=0.6243yrs90
Kerosene used in Pakistanr=0.8442yrs88
Kerosene used in Syriar=0.8442yrs78
Gasoline pumped in United Kingdomr=0.8443yrs68
Kerosene used in United Statesr=0.8443yrs58


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You caught me! While it would be intuitive to sort only by "correlation," I have a big, weird database. If I sort only by correlation, often all the top results are from some one or two very large datasets (like the weather or labor statistics), and it overwhelms the page.

I can't show you *all* the correlations, because my database would get too large and this page would take a very long time to load. Instead I opt to show you a subset, and I sort them by a magic system score. It starts with the correlation, but penalizes variables that repeat from the same dataset. (It also gives a bonus to variables I happen to find interesting.)
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