Disease and Health Inequalities Attributable to Air Pollutant Exposure in Detroit, Michigan
Abstract
:1. Introduction
1.1. Background
1.2. Objectives
2. Materials and Methods
2.1. Study Area, Spatial Resolution, and Study Population
2.2. Health Impact Assessment
2.3. Exposure Assessment
2.4. Apportionment of Exposures to Source Categories
2.5. Inequality Metrics
3. Results
3.1. Daily Population Exposures at the Census Block Level
3.2. Burden of Disease
3.3. Spatial Distribution and Inequality of Exposures and Attributable Health Burden
3.4. Atkinson Index
3.5. Concentration Index
4. Discussion
4.1. Burden of Disease Attributable to Ambient Air Pollutant Exposures below the NAAQS
4.2. Intra-Urban Inequality in the Health Burden Attributable to Ambient Air Pollution
4.3. Exposures as a Poor Proxy for Health Risks in Urban-Scale Inequality Assessments
4.4. Using Urban-Scale HIAs Incorporating Inequality Metrics in AQM Decision Making
4.5. Uncertainty in the Quantitative Health Impact Assessments
5. Conclusions
Supplementary Materials
Acknowledgments
Author Contributions
Conflicts of Interest
Appendix A
References
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Pollutant | Source | Mean (SD) | Min | 25th | Median | 75th | 95th | Max |
---|---|---|---|---|---|---|---|---|
PM2.5 (μg/m3) | Regional | 8.3 (4.5) | 1.5 | 5.2 | 6.8 | 11.3 | 14.5 | 29.5 |
Point | 0.5 (0.9) | 0.0 | 0.1 | 0.3 | 0.6 | 1.4 | 75.7 | |
Mobile | 0.6 (0.5) | 0.0 | 0.3 | 0.4 | 0.7 | 1.6 | 12.7 | |
Area | 1.8 (2.8) | 0.0 | 0.2 | 1.0 | 2.2 | 6.3 | 29.4 | |
Total | 10.7 (5.4) | 2.0 | 6.5 | 9.9 | 13.5 | 19.7 | 82.4 | |
DPM (μg/m3) | Mobile | 0.5 (0.6) | 0.0 | 0.2 | 0.4 | 0.6 | 1.5 | 12.3 |
O3 (ppb) | Regional | 38.3 (13.7) | 6.8 | 28.2 | 36.4 | 46.9 | 63.4 | 103.8 |
SO2 (ppb) | Point | 1.1 (1.4) | 0.0 | 0.1 | 0.5 | 1.6 | 4.0 | 19.4 |
NO2 (ppb) | Regional | 10.9 (5.1) | 2.6 | 7.7 | 9.7 | 12.9 | 23.0 | 30.2 |
Point | 1.4 (1.1) | 0.0 | 0.5 | 1.1 | 1.9 | 3.5 | 17.0 | |
Mobile | 10.2 (9.0) | 0.0 | 4.3 | 7.6 | 13.0 | 27.1 | 191.9 | |
Area | 1.7 (3.0) | 0.0 | 0.0 | 0.0 | 2.6 | 8.8 | 17.2 | |
Total | 23.5 (10.5) | 5.8 | 17.3 | 21.9 | 26.0 | 43.1 | 214.2 |
Attributable Impacts | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Exposure Source | % of Attributable Burden Due to Each Pollutant | |||||||||
Outcome (age group) | Estimated annual incidence 1 | Total (% 2) | Regional | Point | Mobile | Area | PM2.5 | O3 | SO2 | NO2 |
Mortality (cases) | ||||||||||
All-cause (>29) | 9400 | 520 (5.5) | 420 | 24 | 27 | 84 | 100 | 0 | 0 | 0 |
Non-accidental (>29) | 8800 | 140 (1.5) | 140 | 0 | 0 | 0 | 0 | 100 | 0 | 0 |
Infant (<1) | 200 | 6 (4.0) | 5 | 0 | 0 | 1 | 100 | 0 | 0 | 0 |
Hospitalizations (cases) | ||||||||||
Asthma (<65) | 3200 | 210 (6.7) | 140 | 17 | 46 | 16 | 51 | 0 | 3 | 46 |
COPD (>65) | 1900 | 419 (22.4) | 330 | 48 | 40 | 12 | 5 | 62 | 10 | 23 |
CVD (>65) | 9800 | 160 (1.6) | 130 | 7 | 8 | 8 | 100 | 0 | 0 | 0 |
Pneumonia (>65) | 1500 | 250 (17.3) | 240 | 3 | 3 | 3 | 23 | 77 | 0 | 0 |
Non-fatal MI (>17) | 2600 | 60 (2.3) | 48 | 3 | 3 | 3 | 100 | 0 | 0 | 0 |
Asthma outcomes (cases) | ||||||||||
Asthma ED visit (<18) | 9000 | 3300 (36.7) | 2600 | 160 | 450 | 120 | 15 | 51 | 2 | 31 |
Day w/cough (6–14) | 1,700,000 | 210,000 (12.5) | 170,000 | 10,000 | 11,000 | 9500 | 100 | 0 | 0 | 0 |
Day w/wheeze (6–14) | 1,100,000 | 17,000 (1.6) | 13,000 | 780 | 820 | 740 | 100 | 0 | 0 | 0 |
Day w/SoB (6–14) | 1,000,000 | 21,000 (2.1) | 17,000 | 1000 | 1000 | 940 | 100 | 0 | 0 | 0 |
2+ symptoms (6–14) | 2,000,000 | 180,000 (8.6) | 110,000 | 12,000 | 45,000 | 9600 | 0 | 34 | 3 | 64 |
Restricted days | ||||||||||
MRAD (18–64) | 4,600,000 | 760,000 (16.7) | 700,000 | 16,000 | 18,000 | 18,000 | 44 | 56 | 0 | 0 |
WLD (18–64) | 1,300,000 | 59,000 (4.7) | 47,000 | 2800 | 3000 | 3100 | 100 | 0 | 0 | 0 |
MSD (6–14) | 2,700,000 | 570,000 (21.3) | 570,000 | 0 | 0 | 0 | 0 | 100 | 0 | 0 |
Total DALYs (years) | 10,000 | 8100 | 470 | 560 | 1600 | 97 | 1 | 0.06 | 1.3 | |
Monetized impact ($ million) | 6600 | 5500 | 240 | 280 | 830 | 78 | 21 | 0.03 | 0.5 |
Annual Average Exposures 2 | Annual Health Impact Risk | ||||||
---|---|---|---|---|---|---|---|
Pollutant | Source | All Blocks | ZIP Codes | NA Area 3 | All Blocks | ZIP Codes | NA Area 3 |
PM2.5 | Regional 4 | - | - | - | 0.041 | 0.022 (46) | 0.038 (7) |
Point | 0.101 | 0.139 (−37) | 0.107 (−5) | 0.126 | 0.154 (−22) | 0.157 (−25) | |
Mobile | 0.079 | 0.057 (29) | 0.128 (−61) | 0.126 | 0.084 (34) | 0.153 (−21) | |
Area | 0.070 | 0.019 (73) | 0.082 (−18) | 0.113 | 0.045 (60) | 0.111 (1) | |
Total | 0.003 | 0.001 (62) | 0.003 (−13) | 0.045 | 0.023 (49) | 0.041 (8) | |
O3 | Regional 4 | - | - | - | 0.040 | 0.023 (43) | 0.038 (4) |
SO2 | Point | 0.064 | 0.055 (13) | 0.043 (33) | 0.155 | 0.075 (51) | 0.116 (25) |
NO2 | Regional 4 | - | - | - | 0.133 | 0.038 (72) | 0.096 (28) |
Point | 0.034 | 0.027 (23) | 0.042 (−21) | 0.159 | 0.057 (64) | 0.140 (12) | |
Mobile | 0.084 | 0.055 (34) | 0.126 (−50) | 0.191 | 0.072 (62) | 0.203 (−7) | |
Area | 0.130 | 0.101 (22) | 0.163 (−26) | 0.245 | 0.141 (43) | 0.225 (8) | |
Total | 0.009 | 0.011 (−18) | 0.012 (−25) | 0.137 | 0.045 (67) | 0.104 (24) |
Concentration Index (×100) | ||||||||
---|---|---|---|---|---|---|---|---|
Pollutant | Source | Percent Non-White | Percent Latino | Percent Less than HS | Median Income | Percent HH in Poverty | Percent POC | % FB |
All census blocks | ||||||||
PM2.5 | Regional | −6.7 | 3.0 | −1.0 | −4.1 | −1.2 | −6.4 | 6.5 |
Point | 5.4 | −11.7 | −8.2 | −3.1 | −0.2 | 3.8 | −5.7 | |
Mobile | −6.6 | 0.8 | −4.6 | −8.7 | −5.5 | −6.8 | 6.1 | |
Area | −7.6 | 4.0 | 0.4 | −4.5 | −1.8 | −7.0 | 7.9 | |
Total | −6.3 | 2.4 | −1.3 | −4.4 | −1.5 | −6.1 | 6.1 | |
O3 | Regional | −6.2 | 3.0 | −0.6 | −3.4 | −0.5 | −5.9 | 6.1 |
SO2 | Point | 8.1 | −13.3 | −11.1 | −3.3 | −6.9 | 6.0 | −12.4 |
NO2 | Regional | 1.3 | −2.1 | −3.6 | −0.8 | −5.0 | 0.7 | −4.3 |
Point | 5.8 | −9.3 | −8.9 | −2.8 | −7.0 | 4.1 | −10.1 | |
Mobile | −1.0 | −3.4 | −7.2 | −5.0 | −8.4 | −2.3 | −2.6 | |
Area | 3.6 | −0.6 | 2.8 | 4.4 | 0.2 | 4.1 | −4.7 | |
Total | 0.8 | −3.0 | −4.9 | −2.3 | −6.1 | −0.1 | −3.9 | |
ZIP codes | ||||||||
PM2.5 | Regional | −8 (−19) | 4.1 (−35) | −0.5 (49) | −8.2 (−101) | −4.3 (−269) | −8.2 (−27) | 7.8 (−21) |
Point | 8.5 (−58) | −23.7 (−102) | −12.9 (−57) | −6.1 (−95) | −6.1 (−2973) | 2.2 (41) | −8.2 (−44) | |
Mobile | −4.4 (33) | −0.8 (193) | −1.4 (70) | −18.6 (−114) | −13.5 (−143) | −6.1 (11) | 1.1 (81) | |
Area | −9.2 (−22) | 8.7 (−121) | 1 (−139) | −8.1 (−81) | −4.8 (−165) | −8.6 (−23) | 10.1 (−28) | |
Total | −7.7 (−21) | 3 (−25) | −0.6 (57) | −8.1 (−85) | −3.9 (−166) | −8 (−32) | 7.4 (−21) | |
O3 | Regional | −8.2 (−32) | 4.6 (−52) | −0.8 (−35) | −8.4 (−149) | −4.2 (−823) | −8.1 (−39) | 7.5 (−23) |
SO2 | Point | 11.1 (−37) | −15.2 (−15) | −18.7 (−68) | −3.2 (4) | −7.2 (−4) | 8.3 (−40) | −12.1 (3) |
NO2 | Regional | 1.5 (−16) | −0.9 (58) | −6.5 (−84) | 1.6 (296) | −2.2 (56) | 1.1 (−59) | −3 (30) |
Point | 8.5 (−46) | −11 (−19) | −15.1 (−69) | −1.1 (59) | −5.7 (18) | 6.3 (−53) | −10.1 (0) | |
Mobile | 1.9 (295) | −2.7 (20) | −9.1 (−27) | −7.8 (−55) | −10.3 (−24) | 0.2 (107) | −6.5 (−154) | |
Area | −3.9 (207) | 8.4 (1421) | 4.8 (−72) | 7.5 (−69) | 4.8 (−2110) | −2.4 (158) | 9.4 (301) | |
Total | 3.3 (−316) | −4.4 (−47) | −10.1 (−106) | 0.1 (105) | −4.2 (32) | 2.1 (1867) | −6.3 (−60) | |
Census blocks in the SO2 non-attainment area | ||||||||
PM2.5 | Regional | −3.8 (43) | 6.1 (−102) | 5.8 (702) | 0.6 (115) | 3 (362) | −1.3 (79) | 7.1 (−10) |
Point | −11.3 (310) | 2.7 (123) | −3.2 (61) | −8.9 (−184) | −5.5 (−2663) | −11.6 (406) | 6.2 (208) | |
Mobile | −9.2 (−40) | −0.9 (205) | −0.1 (98) | −6 (31) | −4.1 (26) | −9.3 (−37) | 1.8 (71) | |
Area | −0.4 (95) | 7.8 (−98) | 10.9 (−2598) | 5.7 (227) | 6 (430) | 3.3 (147) | 7.7 (2) | |
Total | −4.4 (31) | 5.4 (−125) | 5 (486) | −0.1 (97) | 2.1 (241) | −2.2 (64) | 6.6 (−8) | |
O3 | Regional | −3.3 (46) | 6.5 (−117) | 6.5 (1168) | 1.5 (143) | 3.9 (965) | −0.8 (87) | 7.1 (−18) |
SO2 | Point | −6.1 (175) | −11.2 (16) | −12.6 (−13) | −8.7 (−160) | −10.9 (−58) | −9.2 (254) | −10.1 (19) |
NO2 | Regional | −0.6 (148) | −8.6 (−319) | −8.4 (−137) | −3.9 (−394) | −6.1 (−24) | −3.5 (609) | −9 (−109) |
Point | −5.9 (202) | −12 (−29) | −13.4 (−49) | −9.7 (−252) | −11.9 (−71) | −9.7 (334) | −11.2 (−11) | |
Mobile | −5.7 (−469) | −16.8 (−392) | −15.3 (−115) | −10.2 (−103) | −12.5 (−50) | −11.1 (−375) | −15 (−488) | |
Area | 6.5 (−82) | 7.2 (1225) | 8.1 (−189) | 7.6 (−73) | 6.4 (−2835) | 9.2 (−125) | 7 (250) | |
Total | −2.6 (429) | −11.3 (−279) | −10.6 (−117) | −6.1 (−170) | −8.4 (−37) | −6.2 (−5256) | −10.6 (−171) |
© 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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Martenies, S.E.; Milando, C.W.; Williams, G.O.; Batterman, S.A. Disease and Health Inequalities Attributable to Air Pollutant Exposure in Detroit, Michigan. Int. J. Environ. Res. Public Health 2017, 14, 1243. https://doi.org/10.3390/ijerph14101243
Martenies SE, Milando CW, Williams GO, Batterman SA. Disease and Health Inequalities Attributable to Air Pollutant Exposure in Detroit, Michigan. International Journal of Environmental Research and Public Health. 2017; 14(10):1243. https://doi.org/10.3390/ijerph14101243
Chicago/Turabian StyleMartenies, Sheena E., Chad W. Milando, Guy O. Williams, and Stuart A. Batterman. 2017. "Disease and Health Inequalities Attributable to Air Pollutant Exposure in Detroit, Michigan" International Journal of Environmental Research and Public Health 14, no. 10: 1243. https://doi.org/10.3390/ijerph14101243