Top variables that correlate with Air quality in Boston

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Data source: Environmental Protection Agency
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Air quality in Boston correlates with...

Variable	Correlation	Years	Has img?
US production of sour cream	r=0.91	22yrs	No
Annual US household spending on fruits and vegetables	r=0.9	23yrs	No
Google searches for 'i have a headache'	r=0.88	20yrs	Yes!
Google searches for 'what is my zodiac sign'	r=0.87	20yrs	No

Air quality in Boston also correlates with...

Variable	Correlation	Years	Sys. Score
Ticket prices at North American movie theaters	r=0.91	22yrs	378
The number of consultants in Massachusetts	r=0.94	20yrs	377
Wind power generated in Taiwan	r=0.9	22yrs	374
US production of butter	r=0.9	22yrs	373
US milk fat used to produce butter	r=0.9	22yrs	373
Wind power generated in Kosovo	r=0.94	12yrs	370
McDonald's stock price (MCD)	r=0.86	22yrs	362
Renewable energy production in Burundi	r=0.88	42yrs	362
WEC Energy Group's stock price (WEC)	r=0.86	22yrs	357
Annual US household spending on processed vegetables	r=0.92	23yrs	357
Novartis AG's stock price (NVS)	r=0.85	22yrs	356
Annual US household spending on property taxes	r=0.91	23yrs	356
US dairy skim solids used to produce butter	r=0.9	22yrs	342
Economic output of Washington metro area	r=0.9	21yrs	342
US Wind Power Generation Capacity	r=0.89	23yrs	342
U.S. direct investment abroad	r=0.87	22yrs	340
Cost to send a letter via the USPS	r=0.87	17yrs	340
Google searches for 'i am dizzy'	r=0.88	20yrs	340
Google searches for 'i am tired'	r=0.86	20yrs	340
Microsoft's Worldwide Earnings	r=0.87	21yrs	338
Adidas Group's Global Net Sales	r=0.87	23yrs	336
Popularity of the first name Houston	r=0.86	43yrs	336
The number of registered nurses in Massachusetts	r=0.88	18yrs	336
The number of industrial machinery mechanics in Massachusetts	r=0.87	20yrs	336
Hydopower energy generated in Burundi	r=0.88	42yrs	332
GMO use in corn	r=0.88	24yrs	328
HDFC Bank's stock price (HDB)	r=0.85	22yrs	326
GMO use in cotton	r=0.89	23yrs	326
Total length of SmarterEveryDay YouTube videos	r=0.85	17yrs	326
Total comments on Steve Mould's YouTube videos	r=0.86	15yrs	326
Annual US household spending on fresh fruits	r=0.9	23yrs	324
Annual US household spending on fresh vegetables	r=0.9	23yrs	324
Annual US household spending on rented dwellings	r=0.89	23yrs	322
Annual US household spending on utilities	r=0.89	23yrs	322
Annual US household spending on telephone services	r=0.89	23yrs	322
Annual US household spending on housing	r=0.88	23yrs	321
Annual US household spending on healthcare	r=0.88	23yrs	321
US per-person consumption of bottled water	r=0.85	24yrs	318
Electricity generation in Somalia	r=0.85	42yrs	317
Unilever's stock price (UL)	r=0.85	22yrs	316
US Tree Nut Consumption per Person	r=0.85	22yrs	316
American Tower's stock price (AMT)	r=0.85	22yrs	306
The number of postsecondary art, drama, and music teachers in Massachusetts	r=0.86	20yrs	305
US production of cheese (other than cottage cheese)	r=0.89	22yrs	302
Becton, Dickinson and Company's stock price (BDX)	r=0.85	22yrs	296
Google searches for 'tummy ache'	r=0.86	20yrs	296
The number of interpreters and translators in Massachusetts	r=0.86	20yrs	295
Wind power generated in Czechia	r=0.9	22yrs	294
US milk fat used to produce cheese (excluding cottage cheese)	r=0.89	22yrs	292
Yum! Brands' stock price (YUM)	r=0.85	22yrs	286
Google searches for 'no cap'	r=0.86	20yrs	286
The number of physician assistants in Massachusetts	r=0.86	20yrs	285
Hydopower energy generated in Greenland	r=0.88	23yrs	282
US dairy skim solids used to produce cheese (other than cottage cheese)	r=0.89	22yrs	280
Church & Dwight Co.'s stock price (CHD)	r=0.85	22yrs	276
The number of pharmacy technicians in Massachusetts	r=0.86	20yrs	275
Annual US household spending on medical supplies	r=0.88	23yrs	271
Solar power generated in Malawi	r=0.92	12yrs	268
US milk fat used to produce sour cream	r=0.86	22yrs	267
Eversource Energy's stock price (ES)	r=0.85	22yrs	266
The number of veterinary technologists and technicians in Massachusetts	r=0.86	20yrs	265
Annual US household spending on cereals and bakery products	r=0.87	23yrs	265
Annual US household spending on electricity	r=0.87	23yrs	260
Jet fuel used in Sao Tome and Principe	r=0.88	22yrs	258
US dairy skim solids used to produce sour cream	r=0.86	22yrs	256
Annual US household spending on other household products	r=0.87	23yrs	255
Annual US household spending on medical services	r=0.87	23yrs	250
Automotive recalls for issues with the Electrical System	r=0.7	43yrs	249
Biomass power generated in Zambia	r=0.85	22yrs	247
Annual US household spending on bakery products	r=0.86	23yrs	243
Annual US household spending on health insurance	r=0.86	23yrs	238
Annual US household spending on pets, toys, and hobbies	r=0.86	23yrs	233
Liquefied petroleum gas used in Maldives	r=0.86	18yrs	232
US household spending on fresh fruits	r=0.86	23yrs	228
US household spending on rented dwellings	r=0.86	23yrs	223
US average dairy skim-solid content of fluid beverage milk	r=0.89	22yrs	218
Annual US household spending on dairy products	r=0.85	23yrs	216
US average milk-fat content of cheese (other than cottage cheese)	r=0.87	22yrs	206
Wind power generated in Nepal	r=0.95	8yrs	198
Wind power generated in Serbia	r=0.94	9yrs	188
Average milk produced per cow in the US	r=0.75	43yrs	170
The Coca-Cola Company's stock price (KO)	r=0.83	22yrs	152
Realty Income's stock price (O)	r=0.85	22yrs	140
Fossil fuel use in Somalia	r=0.84	42yrs	140
Wind power generated in Bosnia and Herzegovina	r=0.9	11yrs	134
Brown-Forman's stock price (BF.B)	r=0.85	22yrs	130
Canadian National Railway Company's stock price (CNI)	r=0.84	22yrs	119
Sempra's stock price (SRE)	r=0.84	22yrs	109
Petroluem consumption in Burundi	r=0.84	42yrs	108
Crown Castle's stock price (CCI)	r=0.84	22yrs	99
Liquefied petroleum gas used in Mauritania	r=0.84	42yrs	98
Brown-Forman's stock price (BF.A)	r=0.84	22yrs	89
Liquefied petroleum gas used in Saudi Arabia	r=0.84	42yrs	88
CGI Inc.'s stock price (GIB)	r=0.84	22yrs	79
Electricity generation in Burundi	r=0.81	42yrs	76
Illumina's stock price (ILMN)	r=0.84	22yrs	69
McCormick & Company's stock price (MKC)	r=0.84	22yrs	59

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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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