Ozone Pollution Timeline
New York City Region - June, 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	Weather	Wdir	Event	EPA AIRNOW MAP dnld:Feb/2000	Bv	O3	NO2	O3	NO2	PubDate
6/1/99	86o	Mist, Haze				22	.019	.045	na	.053
6/2/99	85o	Haze				24	.017	.043	.022	.052
6/3/99	83o					18	na	.025	.031	.024
6/4/99	78o					10	.022	.023	.022	.027
6/5/99	78o					30	.022	.028	.019	.040
6/6/99	78o					55	.023	.023	.018	.038
6/7/99	94o	Haze				50	.034	.040	.041	.036
6/8/99	93o	Haze				33	.037	.031	.037	.033
6/9/99	87o					13	.028	.026	.030	.029
6/10/99	73o	Haze				10	.021	.019	.020	.024
6/11/99	74o	Haze				30	.021	.023	.019	.030
6/12/99	75o	Mist				50	.016	.020	.019	.026
6/13/99	78o	Mist				10	.015	.015	.012	.022
6/14/99	79o	Mist, Haze				10	.019	.028	.014	.036
6/15/99	82o	Mist		Drs. Marce Layton (Epidemiologist for the NYCDOH) and Tracey McNamara (Bronx Zoo) said that birds began dying in northern Queens in mid-June.		11	.029	.026	.027	.023	Medical Lib (12/11/00)
6/16/99	73o					10	.024	na	.023	.024
6/17/99	66o	Mist				10	.013	na	.011	.031
6/18/99	73o					10	.016	.027	.017	.027
6/19/99	79o					12	.021	.032	.022	.034
6/20/99	74o	Mist				10	.029	.021	.026	.028
6/21/99	68o	Mist				10	.014	.028	.013	.012
6/22/99	83o	Mist, Haze		"The dying started in late June when the weather turned hot. From his post at the gate, Carrasco watched birds stumble drunkenly around the grounds [Ft. Totten, Queens]. Some had growths on their heads.		30	na	na	.019	.046	AP and Nando Times 12/5/99
6/23/99	88o	Haze		"In late June or early July, the virus apparently showed up in birds in the Whitestone area of northern Queens and in the South Bronx."		35	.029	.053	.041	.046	The New Yorker, 10/18/99 & 10/25/99
6/24/99	86o					15	.019	.042	.020	.044
6/25/99	83o	Rain				15	.016	.032	.019	.039
6/26/99	91o	Haze		"Crows started dying in mid-June. [Ques: Can you give a specific date?] June 26th stands out in my mind. It was young crows that were dying."		50	.030	.040	.040	.040	Dr. Charos, Bayside Veteranarian -Interview
6/27/99	90o	Mist		"In late-June, my sister said she saw a number of dead crows near the public swimming pool in Harlem."		37	.017	.030	.016	.039	Day Starr, (Queens) -Interview
6/28/99	91o	Rain, Mist				13	.011	.031	.019	.032
6/29/99	90o	Rain, Fog+, Mist, Haze				12	.016	.034	.022	.036
6/30/99	80o					10	.020	.024	.019	.029