Ozone Pollution Timeline
New York City Region - July, 1999
Central Park Weather Data

May, 1999 June, 1999 July, 1999 August, 1999 September, 1999

Mapped interpolations of EPA ozone monitor stations data (8-hour average concentration)
These maps, downloaded Feb/2000, have since been revised by the EPA
For reference: [Daily Average Ozone Charts] [Hourly Ozone Charts]

          Queens
College Pt.
Bronx
(Gerard Av)
 
Date Fo Event EPA AIRNOW MAP dnld:Feb/2000 Bv O3 NO2 O3 NO2 PubDate
7/1/99 76o   10 .008 .026 .006 .034  
7/2/99 86o   10 .022 .030 .023 .031  
7/3/99 87o   37 .029 .037 .036 .041  
7/4/99 96o   15 .026 .033 .031 .028  
7/5/99 101o   15 .031 .022 .034 .022  
7/6/99 101o   18 .040 .031 .046 .025  
7/7/99 93o   14 .034 .025 .031 .027  
7/8/99 87o   10 .025 .028 .023 .030  
7/9/99 84o   12 .025 .037 .026 .041  
7/10/99 86o   12 .033 .023 .037 .021  
7/11/99 83o   10 .022 .018 .024 .017  
7/12/99 80o   10 .014 .029 .015 .029  
7/13/99 78o   12 .021 .022 .023 .023  
7/14/99 76o "The peak of the crow deaths occurred around mid-July."

WindSpdResultant: 0.5mph, Avg: 2.5mph, Dir: 31

50 .008 .044 .010 .045 Dr. Charos, Veteranarian,
Bayside
-Interview
7/15/99 90o "In mid-July of 1998, I saw many dead crows near the Brooklyn Hospital. That's where I got this [pointing to a black feather tied to her purse]. 75 .026 .051 .032 .053 Day Starr, Queens
-Interview
"Within weeks [from "late June" (see 6/22/99)], it was the same all over the New York City area - in Brooklyn's Prospect Park, by Long Island roadsides, on golf courses in Westchester County. Dead crows were everywhere; and sick birds, listless and disoriented, shuffled about aimlessly. [para] On Long Island, a man saw one fall right out of a tree." AP and Nando Times 12/5/99
7/16/99 97o   78 .040 .056 .054 .052  
7/17/99 98o [Unprecedented, from 1995 onward, the NYSDEC began receiving reports every summer (mostly June/July) re dead birds from the NYC region.] 76 .033 .051 .050 .050 Review of NYSDEC log
7/18/99 98o "I saw sick crows in Flushing Meadows Park in late July and told the newspapers, but I never saw my comments in print. [...] I observed them near the Olmstead Center in Flushing Meadows-Corona Park." 74 .042 .038 .053 .043 Richard Jannaccio
Science journalist
-Email via Mitchel Cohen
7/19/99 101o   40 .029 .049 .032 .054  
7/20/99 87o   12 .020 .028 .024 .030  
7/21/99 82o   12 .013 .026 .010 .037  
7/22/99 83o   10 na na .013 .033  
7/23/99 92o   40 na na .025 .054  
7/24/99 97o   72 na na .049 .059  
7/25/99 97o   38 na na .046 .027  
7/26/99 93o   32 na na .046 .031  
7/27/99 96o "[The Bronx Zoo] pathologist, Tracey McNamara, said she became concerned in late July when she heard that a large number of crows had been dying around the zoo." 38 na na .036 .039 NYT 9/25/99
7/28/99 97o "A pathologist at the zoo, Tracey McNamara, first noticed that large numbers of crows were dying, reaching 40 by August." 30 .026 .041 .034 .039 NYT 8/22/99
7/29/99 93o "There have been well over 1,000 reports of birds that died suddenly around the region since late July..." 50 .019 .051 .030 .060 NYT 9/29/99
"3,000 were reported to NYSDOH from New York City, Westchester County, and Nassau County... Given a geographic area of 600 square miles, the population of crows may have been 9,000 birds, indicating a mortality rate of 33%. If only half the bird deaths, dead crows, were reported, the mortality rate could have been twice as high." NYSDOH
eidtxt.doc
12/18/99
7/30/99 92o   36 .032 .032 .052 .038  
7/31/99 90o   34 .041 .024 .046 .035  

 

May, 1999 June, 1999 July, 1999 August, 1999 September, 1999