Top variables that correlate with Air quality in Salisbury, Maryland

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Data source: Environmental Protection Agency
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Air quality in Salisbury, Maryland correlates with...

Variable	Correlation	Years	Sys. Score
Google searches for 'i have a headache'	r=0.9	19yrs	392
Chunghwa Telecom Co.'s stock price (CHT)	r=0.91	19yrs	392
Hydopower energy generated in Greenland	r=0.94	23yrs	382
Biomass power generated in India	r=0.94	23yrs	382
Wind power generated in Taiwan	r=0.94	22yrs	380
Google searches for 'i am tired'	r=0.93	19yrs	379
Ticket prices at North American movie theaters	r=0.91	22yrs	378
U.S. direct investment abroad	r=0.92	22yrs	378
Popularity of the 'red pill blue pill' meme	r=0.92	17yrs	378
US Wind Power Generation Capacity	r=0.91	23yrs	376
US production of dry milk products (net)	r=0.91	22yrs	374
Google searches for 'tummy ache'	r=0.92	19yrs	374
The number of epidemiologists in Maryland	r=0.92	20yrs	374
US production of cheese (other than cottage cheese)	r=0.9	22yrs	373
US production of butter	r=0.9	22yrs	373
The number of logisticians in Maryland	r=0.91	19yrs	372
The number of electrical engineers in Maryland	r=0.9	20yrs	371
Global Net Sales for Walmart	r=0.91	17yrs	370
The Coca-Cola Company's stock price (KO)	r=0.87	21yrs	362
GMO use in corn	r=0.9	23yrs	360
US household spending on fresh fruits	r=0.94	23yrs	360
Realty Income's stock price (O)	r=0.88	21yrs	359
US household spending on rented dwellings	r=0.93	23yrs	358
How professional-sounding SmarterEveryDay YouTube video titles are	r=0.93	16yrs	358
GMO use in cotton	r=0.9	23yrs	357
US household spending on healthcare	r=0.92	23yrs	357
Annual US household spending on fresh fruits	r=0.91	23yrs	356
Annual US household spending on rented dwellings	r=0.91	23yrs	356
US household spending on health insurance	r=0.91	23yrs	356
Annual US household spending on health insurance	r=0.9	23yrs	354
Wind power generated in Czechia	r=0.93	22yrs	349
US milk fat used to produce cheese (excluding cottage cheese)	r=0.9	22yrs	343
Total employee count at Continental AG	r=0.87	24yrs	342
Economic output of Washington metro area	r=0.89	21yrs	340
Adidas Group's Global Net Sales	r=0.89	23yrs	340
Biomass power generated in Zambia	r=0.93	22yrs	339
Global annual electricity generation	r=0.89	18yrs	338
China's Annual Passenger Car Production	r=0.88	18yrs	336
Total Revenue of the NFL Teams	r=0.86	20yrs	335
Annual Revenue of the Lego Group	r=0.86	20yrs	335
Revenue of US Broadcasting Industry	r=0.87	17yrs	334
US milk fat used to produce butter	r=0.9	22yrs	333
Apple's annual net income	r=0.85	18yrs	332
Google searches for 'i have the flu'	r=0.89	19yrs	330
Dollar Tree's stock price (DLTR)	r=0.86	21yrs	329
Biomass power generated in Papua New Guinea	r=0.91	22yrs	326
Annual US household spending on fruits and vegetables	r=0.9	23yrs	324
Annual US household spending on telephone services	r=0.9	23yrs	324
Annual US household spending on healthcare	r=0.9	23yrs	324
US dairy skim solids used to produce dry milk products	r=0.91	22yrs	323
Cognizant Technology Solutions' stock price (CTSH)	r=0.86	21yrs	316
US dairy skim solids used to produce cheese (other than cottage cheese)	r=0.9	22yrs	312
The number of statisticians in Maryland	r=0.88	20yrs	310
Wind power generated in Bulgaria	r=0.9	18yrs	310
Cummins' stock price (CMI)	r=0.86	21yrs	306
Google searches for 'i am dizzy'	r=0.9	19yrs	302
US dairy skim solids used to produce butter	r=0.9	22yrs	302
The number of materials engineers in Maryland	r=0.87	20yrs	296
Colgate-Palmolive Company's stock price (CL)	r=0.85	21yrs	294
Google searches for 'buy a house'	r=0.89	19yrs	290
Muenster cheese consumption	r=0.92	27yrs	288
The number of clergy in Maryland	r=0.87	20yrs	286
Arch Capital Group's stock price (ACGL)	r=0.85	21yrs	284
Liquefied petroleum gas used in Belgium	r=0.85	40yrs	282
Google searches for 'highest paying jobs'	r=0.89	19yrs	280
The number of operations research analysts in Maryland	r=0.86	20yrs	275
US household spending on fresh vegetables	r=0.9	23yrs	274
Petroluem consumption in Rwanda	r=0.85	39yrs	271
Google searches for 'do i need to go to the doctor'	r=0.89	19yrs	270
US Tree Nut Consumption per Person	r=0.89	22yrs	267
Annual US household spending on fresh vegetables	r=0.89	23yrs	267
The number of veterinary technologists and technicians in Maryland	r=0.85	20yrs	264
Annual US household spending on processed vegetables	r=0.89	23yrs	262
US per-person consumption of bottled water	r=0.87	24yrs	260
US average dairy skim-solid content of yogurt, nonfrozen	r=0.9	22yrs	260
Google searches for 'who is jk rowling'	r=0.88	19yrs	258
Solar power generated in Germany	r=0.86	31yrs	258
Automotive recalls for issues with the Electrical System	r=0.74	40yrs	252
Automotive recalls issued by Mercedes-Benz USA	r=0.71	40yrs	252
Solar power generated in Spain	r=0.86	32yrs	248
Google searches for 'what is the FDIC'	r=0.87	19yrs	247
US production of sour cream	r=0.89	22yrs	242
Wind power generated in Switzerland	r=0.9	26yrs	238
Google searches for 'headache remedies'	r=0.86	19yrs	236
US milk fat used to produce yogurt	r=0.89	22yrs	232
US Bottled Water Consumption per Person	r=0.88	24yrs	228
Solar power generated in Czechia	r=0.87	29yrs	227
Google searches for 'how to make baby'	r=0.86	19yrs	226
US dairy skim solids used to produce yogurt, nonfrozen	r=0.89	22yrs	220
Wind power generated in France	r=0.87	29yrs	217
Google searches for 'what is my zodiac sign'	r=0.85	19yrs	214
US production of whey products (net)	r=0.86	22yrs	207
Biomass power generated in Indonesia	r=0.86	29yrs	206
US dairy skim solids used to produce whey products	r=0.86	22yrs	196
Wind power generated in Falkland Islands	r=0.9	22yrs	194
Biomass power generated in Ireland	r=0.85	29yrs	184
Wind power generated in Poland	r=0.86	27yrs	174
McDonald's stock price (MCD)	r=0.85	21yrs	174
Biomass power generated in Rwanda	r=0.89	22yrs	163
General Mills' stock price (GIS)	r=0.84	21yrs	160
Hydopower energy generated in Sierra Leone	r=0.89	22yrs	153

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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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