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Data source: Environmental Protection Agency
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Air pollution in Philadelphia, Pennsylvania correlates with...

VariableCorrelationYearsHas img?
The number of salespeople in Pennsylvaniar=0.9120yrsNo
Cigarette Smoking Rate for US adultsr=0.8221yrsNo
Google searches for 'how to fake your own death'r=0.7420yrsNo


Air pollution in Philadelphia, Pennsylvania also correlates with...

VariableCorrelationYearsSys. Score
Average length of LockPickingLawyer YouTube videosr=0.959yrs394
Vodafone Group's stock price (VOD)r=0.8622yrs357
US Tobacco Productionr=0.8723yrs340
The number of retail salespersons in Pennsylvaniar=0.8920yrs340
Average views of MinuteEarth YouTube videosr=0.9111yrs320
Number of articles Matt Levine published on Bloomberg.comr=0.9310yrs316
How insightful Technology Connections YouTube video titles arer=0.919yrs298
Bachelor's degrees awarded in Theology and religious vocationsr=0.9210yrs297
Master's degrees awarded in gender studiesr=0.9210yrs297
Associates degrees awarded in Business operationsr=0.9111yrs295
Bloomberg Money Stuff articles about insider tradingr=0.9210yrs294
Number of articles Matt Levine published on Bloomberg on Tuesdaysr=0.9210yrs294
Patents granted to Toshibar=0.8912yrs282
How geeky LockPickingLawyer YouTube video titles arer=0.99yrs266
Associates degrees awarded in health assistancer=0.9111yrs265
Google searches for 'how to do magic'r=0.8520yrs230
Liquefied petroleum gas used in Netherlands Antillesr=0.7242yrs230
Petroluem consumption in Germany, Eastr=0.911yrs230
Academy Awards Ceremony Audience Sizer=0.8323yrs228
US production of fluid beverage milkr=0.8322yrs228
Fossil fuel use in Germanyr=0.7631yrs228
The number of special education teachers in Pennsylvaniar=0.8711yrs228
Popularity of the first name Elishar=0.8343yrs227
The number of paving, surfacing, and tamping equipment operators in Pennsylvaniar=0.8420yrs227
US dairy skim solids used to produce milk fat and skim solids byproduct fluid beverage milkr=0.8322yrs226
Kerosene used in Greecer=0.6842yrs224
Master's degrees awarded in linguisticsr=0.910yrs224
Average views of SciShow Space YouTube videosr=0.910yrs217
Petroluem consumption in Former Czechoslovakiar=0.8613yrs216
Popularity of the first name Joshr=0.7443yrs214
Popularity of the first name Chrisr=0.7343yrs212
Master's degrees awarded in Architecturer=0.8810yrs211
US household spending on fresh milk and creamr=0.8123yrs206
US household spending on tobacco products and smoking suppliesr=0.7923yrs202
Associates degrees awarded in Accountingr=0.8811yrs200
Fiserv's stock price (FI)r=-0.9522yrs198
Sysco's stock price (SYY)r=-0.9522yrs198
The number of cashiers in Pennsylvaniar=0.8320yrs196
Visitors to SeaWorld Californiar=0.8215yrs194
Google searches for 'xbox'r=0.8120yrs194
Asthma prevalence in American childrenr=0.817yrs192
Customer satisfaction with United Airlinesr=-0.8228yrs192
Asthma prevalence in American childrenr=0.7917yrs191
Google searches for 'xkcd'r=0.8117yrs191
Culinary Associates degrees awardedr=0.8811yrs190
Kerosene used in U.S. Pacific Islandsr=0.6442yrs188
The number of recreational therapists in Pennsylvaniar=0.8220yrs184
Popularity of the first name Gretchenr=0.7343yrs182
Kerosene used in United Statesr=0.6343yrs177
Popularity of the first name Ninar=0.7243yrs170
Walmart's stock price (WMT)r=-0.8722yrs166
Popularity of the first name Jasonr=0.7143yrs159
Total comments on Steve Mould's YouTube videosr=-0.9515yrs157
Lockheed Martin's stock price (LMT)r=-0.922yrs156
Popularity of the first name Johannar=0.743yrs148
McCormick & Company's stock price (MKC)r=-0.9322yrs146
Popularity of the first name Joelr=0.6943yrs136
The number of computer programmers in Pennsylvaniar=0.8220yrs136
Total length of Steve Mould's YouTube videosr=-0.9415yrs136
HDFC Bank's stock price (HDB)r=-0.9222yrs135
Popularity of the first name Leslier=0.6943yrs126
Amgen's stock price (AMGN)r=-0.9222yrs125
Average length of SmarterEveryDay YouTube videosr=-0.9117yrs125
The number of college sociology teachers in Pennsylvaniar=0.8220yrs124
Popularity of the first name Jermainer=0.6943yrs116
Stryker's stock price (SYK)r=-0.9222yrs115
Total length of SmarterEveryDay YouTube videosr=-0.9117yrs115
The number of laundry and dry-cleaning workers in Pennsylvaniar=0.8220yrs114
Popularity of the first name Charityr=0.6943yrs106
Vertex Pharmaceuticals' stock price (VRTX)r=-0.9222yrs105
The number of survey researchers in Pennsylvaniar=0.8120yrs102
Total length of The Game Theorists YouTube videosr=-0.915yrs102
Popularity of the first name Nickr=0.6943yrs96
Becton, Dickinson and Company's stock price (BDX)r=-0.9222yrs95
The number of environmental science teachers in Pennsylvaniar=0.8120yrs92
Humana's stock price (HUM)r=-0.9222yrs85
Popularity of the first name Benr=0.6743yrs83
The number of bill collectors in Pennsylvaniar=0.820yrs82
American Electric Power Company's stock price (AEP)r=-0.9222yrs75
Popularity of the first name Shaunr=0.6643yrs72
The number of human resources assistants in Pennsylvaniar=0.8120yrs72
Ross Stores' stock price (ROST)r=-0.9222yrs65
Popularity of the first name Jeniferr=0.6643yrs62
The number of production, planning, and expediting clerks in Pennsylvaniar=0.8120yrs62
Centene's stock price (CNC)r=-0.9222yrs55
The number of advertising sales agents in Pennsylvaniar=0.820yrs51
Popularity of the first name Heidir=0.6543yrs50
CGI Inc.'s stock price (GIB)r=-0.9222yrs45
The number of switchboard operators in Pennsylvaniar=0.820yrs41
Popularity of the first name Wendyr=0.6543yrs40
VeriSign's stock price (VRSN)r=-0.9222yrs35
The number of sheet metal workers in Pennsylvaniar=0.820yrs31
Popularity of the first name Joeyr=0.6543yrs30
JPMorgan Chase & Co.'s stock price (JPM)r=-0.9122yrs24
The number of butchers in Pennsylvaniar=0.820yrs21
Popularity of the first name Mandyr=0.6543yrs20
McDonald's stock price (MCD)r=-0.8722yrs14
Popularity of the first name Melisar=0.6543yrs10
Marriott International's stock price (MAR)r=-0.9122yrs4


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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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