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Oregon EPHT: Lead Measures

Lead Indicator:   Childhood blood lead testing

Measure : Housing Age

 

In the US, the main source of childhood lead poisoning is lead-based paint and lead-contaminated dust found in older homes and buildings. Twenty-four million housing units in the United States have peeling or chipping lead-based paint and high levels of lead-contaminated house dust from remodeling. More than 4 million of these homes are occupied by young children. Despite the ban on lead-based paints in 1978, homes and other buildings built before 1978 (and especially those built before 1950) may contain lead-based paint.

 

Children are at a higher risk for exposure to lead than adults. The normal behavior of children - crawling, exploring, teething, putting objects in their mouth - puts them into contact with any lead that is present in their environment through eating lead-based paint chips, chewing on objects painted with lead-based paint, or swallowing house dust or soil that contains lead.  Research has shown that lead poisoning and elevated blood lead levels are more frequent in children who grow up in poverty or live in houses build before 1950.

 

In Oregon’s rural areas, there is a link between living in pre-1950 housing and poverty, but it is not strong. Information from the census does not show the same link for Oregon’s more populated areas. So, while although poverty and pre-1950 housing may not make good estimates of the risk of being exposed to lead in Oregon, these are the best tools available nationally to make an estimation at present.

 

The housing age measure includes the number of housing units built before 1950 and the percentage of pre-1950 housing out of all housing units by state, county and zip code. The data are based on the 2000 census.

 

Table 1:       Percentage and count of housing units built before 1950, by state and county 

 

Map 1:       Percentage of housing units built before 1950, by county  

Map 2:      Percentage of housing units built before 1950, by ZIP code        

 

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    Table 1:       Percentage and count of housing units built before 1950, by state and county   

 

  % (count)
Oregon 20.61 (299,403)
Baker 37.6 (3,156)
Benton 15.7 (5,033)
Clackamas 13.7 (18,830)
Clatsop 37.9 (7,463)
Columbia 24.7 (4,339)
Coos 22.9 (6,689)
Crook 13.4 (1,108)
Curry 7.8 (885)
Deschutes 7.5 (4,102)
Douglas 18.0 (7,800)
Gilliam 47.7 (497)
Grant 29.2 (1,171)
Harney 26.8 (948)
Hood River 27.8 (2,176)
Jackson 14.9 (11,306)
Jefferson 6.2 (517)
Josephine 13.5 (4,478)
Klamath 26.5 (7,659)
Lake 27.6 (1,103)
Lane 16.3 (22,595)
Lincoln 16.6 (4,457)
Linn 20.4 (8,691)
Malheur 24.5 (2,757)
Marion 15.7 (17,026)
Morrow 18.8 (806)
Multnomah 39.0 (112,407)
Polk 18.3 (4,467)
Sherman 40.3 (377)
Tillamook 23.9 (3,801)
Umatilla 25.2 (6,978)
Union 36.4 (3,864)
Wallowa 36.2 (1,413)
Wasco 28.1 (2,990)
Washington 6.3 (11,239)
Wheeler 40.1 (338)
Yamhill 19.6 (5,937)
 
 
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Map 1:       Percentage of housing units built before 1950, by county 
 
                 Each of the three shades on the map represent one third of all counties, with darker shades indicating higher percentages of housing units built before 1950.

 

 

 

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Map 2:        Percentage of housing units built before 1950, by ZIP code

 

Each of the three shades on the map represent one third of all ZIP codes, with darker shades indicating higher percentages of housing units built before 1950. Striped areas are ZIP codes for which no data were available.

 

Note:   Large geographical areas are not equivalent to large populations. ZIP code area varies with population density.

 

 

 

 

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View lead testing, housing and poverty data together