Map 4: Number of Children Under Age Six Years Newly Identified with Blood Lead Levels ≥ 10 mcg/dL by County, Three-Year Average, 2005 - 20071; New York State Excluding New York City

Map 4 groups counties into clusters defined by the number of incident cases of BLLs ≥ 10 mcg/dL among children under age six years for 2005 through 2007. A three-year average is calculated to account for year-to-year variation in this measure. The three-year annual average number of incident cases in NYS, excluding NYC, for 2005 through 2007 was 2,094. The map graphically depicts the variation in incidence among counties across the state. County clusters were established based on the natural break statistical method, which groups county-level incidence values into categories that optimize both the similarity of values within each category and the differences in values between categories. Counties with the highest three-year annual average number of incident cases of childhood lead poisoning between 2005 and 2007 are highlighted in the darkest shade, while those with the lowest number of cases are highlighted in the lightest shade.

As shown on Map 4, eight counties fall within the cluster of highest number of annual incident cases. The majority (65.9 percent of cases outside of NYC) of children newly identified with BLLs ≥ 10 mcg/dL resided in Erie, Monroe, Onondaga, Westchester, Oneida, Orange, Albany and Nassau counties.

Map 4: Number of Children Under Age Six Years Newly Identified with Blood Lead Levels > 10 mcg/dL by County, Three-Year Average, 2005 - 2007; New York State Excluding New York City

County Number of Newly Identified with Blood Lead Levels ≥ 10 mcg/dL
Albany 85.7
Allegany 5.7
Broome 33.0
Cattaraugus 14.3
Cayuga 18.7
Chautauqua 29.3
Chemung 14.3
Chenango 8.3
Clinton 4.0
Columbia 20.0
Cortland 9.3
Delaware 11.0
Dutchess 43.7
Erie 369.0
Essex 2.3
Franklin 2.7
Fulton 30.0
Genesee 10.3
Greene 10.7
Hamilton 1.0
Herkimer 21.3
Jefferson 15.0
Lewis 5.7
Livingston 9.0
Madison 7.7
Monroe 251.0
Montgomery 35.0
Nassau 79.7
Niagara 34.7
Oneida 129.7
Onondaga 152.3
Ontario 12.0
Orange 126.3
Orleans 13.7
Oswego 15.3
Otsego 12.7
Putnam 5.0
Rensselaer 39.3
Rockland 28.3
St. Lawrence 9.3
Saratoga 12.3
Schenectady 30.3
Schoharie 4.0
Schuyler 4.7
Seneca 1.7
Steuben 18.0
Suffolk 50.7
Sullivan 9.7
Tioga 7.3
Tompkins 2.7
Ulster 30.0
Warren 5.0
Washington 12.3
Wayne 18.0
Westchester 151.3
Wyoming 4.7
Yates 5.0

Footnotes

  1. Data ranges established based on the natural breaks method