Top variables that correlate with Air quality in Washington, D.C.

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

Variable	Correlation	Years	Has img?
Average milk produced per cow in the US	r=0.92	43yrs	No
Liquefied petroleum gas used in Thailand	r=0.91	42yrs	No
Total number of automotive recalls	r=0.9	43yrs	Yes!

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

Variable	Correlation	Years	Sys. Score
Solar power generated in Libya	r=0.95	12yrs	402
Patents granted in the US	r=0.91	41yrs	401
Electricity generation in Gibraltar	r=0.94	42yrs	400
Electricity generation in Jordan	r=0.94	42yrs	400
USA Population	r=0.93	43yrs	398
Patents granted in the US	r=0.9	41yrs	396
US Annual Tax Revenue	r=0.91	42yrs	394
Automotive recalls for issues with the Electrical System	r=0.86	43yrs	378
Popularity of the first name Vivian	r=0.94	43yrs	378
Popularity of the first name Mina	r=0.94	43yrs	378
Popularity of the first name Lucas	r=0.93	43yrs	377
Electricity generation in Nicaragua	r=0.94	42yrs	370
Hotdogs consumed by Nathan's Hot Dog Eating Competition Champion	r=0.9	43yrs	370
Google searches for 'i have the flu'	r=0.9	20yrs	362
Budget for largest movie production	r=0.86	43yrs	361
Total number of live births in Australia	r=0.88	43yrs	361
Number of Lawyers in the United States	r=0.89	34yrs	361
GMO use in corn	r=0.9	24yrs	361
Total hydopower energy generated globally	r=0.93	42yrs	359
Intel Corporation's annual revenue	r=0.9	36yrs	357
Number of households headed by single fathers in the United States	r=0.9	32yrs	354
Annual Revenue of Walt Disney Company	r=0.88	32yrs	353
Inflation in the US	r=0.89	31yrs	350
Gender pay gap in the U.S.	r=0.86	32yrs	350
Electricity generation in Argentina	r=0.93	42yrs	349
Number of Registered Vehicles in the US	r=0.87	32yrs	348
Popularity of the first name Wyatt	r=0.93	43yrs	347
US milk fat used to produce yogurt	r=0.9	22yrs	343
Ticket prices at North American movie theaters	r=0.86	22yrs	340
US dairy skim solids used to produce yogurt, nonfrozen	r=0.89	22yrs	340
Electricity generation in Bolivia	r=0.93	42yrs	339
Popularity of the first name Naomi	r=0.93	43yrs	337
Patents granted to Apple	r=0.92	12yrs	336
Number of public school students in 12th grade	r=0.88	33yrs	334
Electricity generation in Brazil	r=0.93	42yrs	329
Popularity of the first name Josiah	r=0.93	43yrs	327
GMO use in cotton	r=0.89	23yrs	326
Annual US household spending on telephone services	r=0.89	23yrs	322
US household spending on healthcare	r=0.89	23yrs	322
US household spending on health insurance	r=0.89	23yrs	322
Annual US household spending on health insurance	r=0.88	23yrs	321
Annual US household spending on rented dwellings	r=0.87	23yrs	320
Annual US household spending on healthcare	r=0.87	23yrs	320
US household spending on rented dwellings	r=0.87	23yrs	320
How professional-sounding SmarterEveryDay YouTube video titles are	r=0.87	17yrs	320
Electricity generation in Cabo Verde	r=0.93	42yrs	319
Annual US household spending on education	r=0.87	21yrs	318
Popularity of the first name Nolan	r=0.93	43yrs	317
Electricity generation in Colombia	r=0.93	42yrs	309
Yogurt consumption	r=0.88	32yrs	308
Popularity of the first name Genesis	r=0.93	43yrs	307
Fossil fuel use in Egypt	r=0.93	42yrs	299
US milk fat used to produce sour cream	r=0.87	22yrs	298
Popularity of the first name Ruby	r=0.93	43yrs	297
Number of internet users	r=0.88	24yrs	295
Electricity generation in Gambia	r=0.93	42yrs	289
U.S. direct investment abroad	r=0.89	22yrs	288
Popularity of the first name Tucker	r=0.93	43yrs	287
US production of cheese (other than cottage cheese)	r=0.86	22yrs	287
Fossil fuel use in Gambia	r=0.93	42yrs	279
Popularity of the first name Braxton	r=0.93	43yrs	277
US milk fat used to produce cheese (excluding cottage cheese)	r=0.86	22yrs	277
Economic output of Washington metro area	r=0.86	21yrs	276
Automotive recalls issued by BMW of North America	r=0.83	43yrs	273
Electricity generation in Honduras	r=0.93	42yrs	269
Popularity of the first name Eden	r=0.93	43yrs	267
US milk fat used to produce whey products (net)	r=0.86	22yrs	267
Automotive recalls for issues with the Power Train	r=0.82	43yrs	267
Automotive recalls issued by Honda	r=0.75	43yrs	261
Automotive recalls issued by Nissan North America	r=0.75	43yrs	261
Automotive recalls issued by Hyundai Motor America	r=0.79	37yrs	261
Fossil fuel use in India	r=0.93	42yrs	259
Popularity of the first name Elaina	r=0.93	43yrs	257
US dairy skim solids used to produce sour cream	r=0.87	22yrs	257
Customer satisfaction with Dillard's	r=0.84	27yrs	256
Automotive recalls issued by Mercedes-Benz USA	r=0.71	43yrs	255
Automotive recalls issued by Chrysler	r=0.7	43yrs	254
Automotive recalls for issues with Exterior Lighting	r=0.72	43yrs	252
US per-person consumption of bottled water	r=0.87	24yrs	250
Fossil fuel use in Indonesia	r=0.93	42yrs	249
Customer satisfaction with Apple	r=0.79	28yrs	249
Popularity of the first name Holden	r=0.93	43yrs	247
US dairy skim solids used to produce cheese (other than cottage cheese)	r=0.86	22yrs	246
Electricity generation in Kuwait	r=0.93	42yrs	239
Popularity of the first name Cecelia	r=0.93	43yrs	237
Hispanic cheese consumption	r=0.88	26yrs	232
Electricity generation in Lebanon	r=0.93	42yrs	229
Popularity of the first name Moshe	r=0.93	43yrs	227
Italian-type cheese consumption	r=0.86	27yrs	220
Fossil fuel use in Lebanon	r=0.93	42yrs	219
Popularity of the first name Haven	r=0.93	43yrs	217
Biomass power generated in Portugal	r=0.93	42yrs	209
Popularity of the first name Alia	r=0.93	43yrs	207
Natural cheese consumption	r=0.86	27yrs	202
Automotive recalls issued by Volkswagen Group of America	r=0.66	43yrs	198
Popularity of the first name Ibrahim	r=0.93	43yrs	197
US Bottled Water Consumption per Person	r=0.87	24yrs	196
Popularity of the first name Asa	r=0.93	43yrs	187
Portion of all US dairy skim-solids allocated to the production of cheese (other than cottage cheese)	r=0.87	22yrs	187

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^{What is Sys. Score?} 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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