Map 3: Percent of Children Tested at Least Twice for Lead by Age Three Years by County; 2004 Birth Cohort (2004 to 2007 Blood Lead Test Data), New York State Excluding New York City

Map 3 groups counties into clusters defined by county-level percent of children with at least two blood lead screening tests by age three years (< 36 months). Statewide, 40.8 percent of children born in 2004 were tested at least twice by age three years. The map graphically depicts the variation in lead testing rates among counties across the state. County clusters were established based on the natural break statistical method, which groups county-level testing rate values into categories that optimize both the similarity of values within each category and the differences in values between categories. Counties with the highest percent of children tested at least twice by age three years are highlighted in the darkest shade, while those with the lowest percent are highlighted in the lightest shade

Map 3: Percent of Children Tested at Least Twice for Lead by Age Three Years by County; 2004 Birth Cohort (2004 to 2007 Blood Lead Test Data), New York State Excluding New York City

County Percent Tested at Three Years1
Albany 37.6
Allegany 19.1
Broome 23.5
Cattaraugus 33.8
Cayuga 48.2
Chautauqua 53.2
Chemung 36.7
Chenango 41.0
Clinton 38.7
Columbia 29.3
Cortland 67.7
Delaware 37.2
Dutchess 48.4
Erie 45.9
Essex 28.6
Franklin 4.7
Fulton 32.7
Genesee 28.5
Greene 38.3
Hamilton 16.1
Herkimer 43.9
Jefferson 32.2
Lewis 24.9
Livingston 32.2
Madison 44.6
Monroe 45.7
Montgomery 42.0
Nassau 41.8
Niagara 38.8
Oneida 41.8
Onondaga 59.7
Ontario 42.6
Orange 39.6
Orleans 29.9
Oswego 32.8
Otsego 43.1
Putnam 52.7
Rensselaer 39.2
Rockland 42.7
St. Lawrence 19.6
Saratoga 26.5
Schenectady 36.2
Schoharie 25.3
Schuyler 28.6
Seneca 30.3
Steuben 51.8
Suffolk 28.1
Sullivan 31.9
Tioga 24.8
Tompkins 35.3
Ulster 47.8
Warren 32.9
Washington 27.4
Wayne 32.1
Westchester 48.7
Wyoming 18.0
Yates 30.4
Statewide Rate 40.8

Footnotes

  1. Data ranges established based on the natural break method.