Ozone Pollution Timeline
New York City Region - September, 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]

          College Pt., Station Monitor Bronx
Gerard Av.
 
Date Fo Event EPA AIRNOW MAP dnld:Feb/2000 Bv O3 NO2 O3 NO2 PubDate
9/1/99 77o "The next day, an investigator was poking through his [the encephalitis victim's] yard in College Point, a Queens neighborhood of tidy houses with small, well-kept lawns. Varuni Kulasekera was looking for clues to identify a killer. But she isn't a cop; she's an entomologist, an expert on insects. [para] In the garden out back she found something suspicious. Open barrels and buckets of water." 10 .020 .024 .006 .033 AP and Nando Times 12/5/99
9/2/99 83o "Finally, in Albany, one blood sample tested positive for St. Louis encephalitis." 14 .015 .035 .023 .039 AP and Nando Times 12/5/99
9/3/99 83o "The next day, CDC technicians in Fort Collins [CDC lab in Colorado] got a similar result. [para] Later that day, Sept. 3, New York City Mayor Rudolph Giuliani stood before TV cameras to announce that the city was facing its first ever outbreak of a mosquito-spread disease called St. Louis encephalitis." [Malathion aerial spray program began 9/3/99.] 14 .008 .037 .036 .041 AP and Nando Times 12/5/99
9/4/99 81o   10 .009 .024 .031 .026  
9/5/99 76o "Over Labor Day weekend [9/4-9/6], the zoo lost a Guanay Cormorant, three Chilean flamingos, a pheasant and a bald eagle. Because these deaths followed those of some crows, experts strongly doubt that the disease originated in the zoo." 10 .014 .010 .034 .017 NYT 9/5/99
9/6/99 83o "Autopsies of the birds revealed streaking in the heart and brain hemorhages. An equine encephalitis was suspected, but Dr. McNamara was skeptical, because the emus in her care, which are very susceptible to that illness, were thriving." 10 .015 .012 .046 .019 NYT 9/5/99
"Lung damage is frequently seen in bird autopsies." [Wald Stone, Ph.d., NYSDEC wildlife pathologist] Ward Stone was trying to make the point to me that findings of lung damage would not be indicative of air toxics as causal for WNV disease because lung damage is so often found in bird autopsies. Interview
9/7/99 79o "Stone, the wildlife pathologist, watched and wondered. Could the disease that was killing people be the same one killing the crows? [para] Right after Labor Day weekend, he sent a few dead birds to a pair of federal laboratories - the National Wildlife Health Center in Madison, Wis., and the U.S. Department of Agriculture virology laboratory in Ames, Iowa. [para] There, virologists ran a slew of tests for North American bird viruses - Newcastle disease; equine encephalitis, Venezuelan encephalitis, all 15 types of avian influenza." 10 .020 .022 .031 .034 AP and Nando Times 12/5/99
9/8/99 81o "The malathion spraying may have added insult to injury. I saw sick crows in Flushing Meadows Park in late July and told the newspapers, but I never saw my comments in print. However, a few days after the spraying I saw for the first time a dead bird across the street from my home [Bayside, Queens] and observed birds crashing into walls, including my house, obviously disoriented in flight." 12 .014 .037 .023 .041 Richard Jannaccio
Science journalist
-Email via Mitchel Cohen
9/9/99 82o "Nevertheless, Dr. Layton and Dr. Fine said they were struck by certain similarities of clinical and laboratory findings among the patients. All [the encephalitis victims] had been active and healthy with only minor medical problems before developing this new illness. Now muscle weakness was a striking feature. Fever and mental confusion were also present, but in varying degrees. [...] 'The only common thread [aside from being elderly] was they spent time outdoors in their backyards,' Dr. Layton said. 'Some were gardeners.'" 14 .015 .035 .026 .042 NYT 9/9/99
9/10/99 75o   10 .007 .032 .037 .035  
9/11/99 79o   10 .025 .029 .024 .031  
9/12/99 81o   11 .029 .029 .015 .036  
9/13/99 77o "The week after Labor Day, a number of birds in the Bronx Zoo collection were found dead, apparently of encephalitis." 12 .018 .044 .023 .038 NYT 10/1/99
9/14/99 77o   10 .012 .042 .010 .042  
9/15/99 71o   10 .008 .031 .032 .039  
9/16/99 75o "Onset dates [of seropositive cases] ranged from August 5 to September 16, although no cases had onset in New York City after control measures were extended to the entire city on September 11. The median age of case-patients was 71 years (range: 15-87 years), with the most severe clinical cases and all fatalities occurring among older persons." 10 .021 .011 .054 .017 CDC MMWR 10/1/99
"The disease [SLE encephalitis], which starts as a flulike illness in humans but can progress to a fatal inflammation of the brain..." NYT 9/4/99
"A clinical case [of West Nile encephalitis] is defined as a presumptive diagnosis of viral encephalitis with or without muscle weakness or acute flaccid paralysis, Guillain-Barre syndrome, aseptic meningitis, or presence of the clinical syndrome characterizing the initial cluster of cases in a patient presenting after August 1." CDC MMWR 10/1/99
"Encephalitis is hard to diagnose since its symptoms closely resemble those of other illnesses, including the flu and a form of meningitis that is common at this time of year." NYT 9/21/99
"[Meningitis] is a fairly common disease; 500-700 cases are reported each year in New York State." [www.health.state.ny.us/nysdoh/consumer/viral.htm] NYSDOH online
9/17/99 72o   10 .020 .014 .050 .015  
9/18/99 75o "After the summer, most of the crow deaths were reported because of the publicity -- crows hit by trucks, etc. They weren't the ones that were dying from encephalitis." [Dr. Charos, veteranarian, Bayside] 10 .015 .023 .053 .024 Interview
9/19/99 75o   10 .023 .039 .032 .033  
9/20/99 74o   10 .021 .026 .024 .039  
9/21/99 67o   10 .010 .014 .010 na  
9/22/99 58o   10 .010 .034 .013 na  
9/23/99 71o   10 .014 na .025 .032  
9/24/99 77o   15 na na .049 .049  
9/25/99 78o   15 na na .046 .039  
9/26/99 71o   10 na na .046 .028  
9/27/99 73o   10 na na .036 .037  
9/28/99 78o   10 na na .034 .048  
9/29/99 74o   14 .026 .026 .030 .035  
9/30/99 70o   10 .020 .023 .052 .023  

 

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