A spatial evaluation of socio demographics surrounding National Priorities List sites in Florida using a distance-based approach

Table 2 Demographic comparisons of census tracts within one-mile distance surrounding 71 NPL sites in Florida

	Centroid Containment Method		Distance Boundary Method		Areal Apportionment Method
	Host Tracts (77)	Non Host Tracts (3077)	Host Tracts (62)	Non Host Tracts (3092)	Host Tracts (253)	Non Host Tracts (2901)
Population
% Population	8.08	91.91	9.23	90.78	0.31	97.43
Race/Ethnicity
% Black	24.84	13.70	23.34	13.10	25.37	13.30
% Native Am	0.34	0.34	0.34	0.34	0.31	0.33
% Asian	1.51	1.64	1.44	1.66	0.18	1.61
% Hawaiian	0.06	0.05	0.06	0.05	0.05	0.05
% Other Race	3.83	2.87	3.57	2.83	3.75	2.80
% Two or more Races	3.20	2.30	2.90	2.26	3.21	2.23
Hispanic	32.52	16.04	27.10	15.00	34.93	15.93
Socioeconomic Characteristics
% Families Living in Poverty	15.09	8.76	13.00	8.50	4.65	8.73
Below Median Income	84.02	62.03	74.00	62.00	74.00	62.00
% Renter Occupied Hsng	43.80	29.42	36.96	29.17	36.10	29.38
Foreign Born	30.42	16.19	25.67	15.75	21.78	16.11
Lacking Plumbing	0.93	0.59	0.80	0.58	1.00	0.58
Occupation
% White Collar	56.33	45.98	48.17	56.75	44.57	56.40
% Blue Collar	43.67	54.02	51.83	43.25	55.29	43.60
Educational Attainment
% With High School Diploma	27.73	28.56	28.24	28.66	27.51	23.87
% With Bachelors Degree	18.52	19.02	17.72	19.11	16.92	18.58
% With Graduate or Professional Degrees	5.62	7.58	5.83	7.67%	5.36	7.93

Notes: Based on 2000 US Census Data STF 3. Education: Total Males and Females 18 years or older. 1999 Median Income in Florida was $41,994 dollars (US Census, 2000). Centroid containment method contained only those census tracts that had a geographic center within one-mile of an NPL. If the one-mile radius did not include the centroid of the host tract, it was not included. Occupation; % of White collar includes P50, % of Blue collar includes p50 (includes food service). Percentages differ because they do not include service protection services which could be considered white or blue collar.

ISSN: 1476-072X