Chapter II — The Air Index
/ Annual Report on Inhabited Atmospheres
Classified · Distribution Limited
Slide 07 / 24
Finding 03 · New York Metropolitan Sector
The sky doesn't fall.
It thickens.
Index: Borough of Manhattan · ground-station composite
10 km
7.5
5.0
2.5
0.0
2022 — 0.41 KM · SMOG CEILING
1962 · BASELINE 9.4 KM
1962
1974
1986
1998
2010
2022
YEAR — GROUND-LEVEL OBSERVATION, 12 MO. ROLLING MEAN
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