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Table 3 Regional emission reductions for existing single-family homes increasing insulation from current practice to IECC 2000 levels.

From: The public health benefits of insulation retrofits in existing housing in the United States

 

Northeast (NE/MA)

Midwest (ENC/WNC)

South (SA/ESC/WSC)

West (MTN/PA)

Total

PM 2.5 (tons/year, % of national total)

     

   Electricity

82 (4%)

260 (12%)

1,600 (74%)

210 (10%)

2,100

   Residential (NG + Oil)

210 (21%)

480 (49%)

200 (20%)

94 (10%)

990

   Total

290 (9%)

740 (24%)

1,800 (57%)

300 (10%)

3,100

SO 2 (tons/year, % of national total)

     

   Electricity

9,100 (5%)

21,000 (12%)

130,000 (78%)

8,300 (5%)

170,000

   Residential (NG + Oil)

14,000 (69%)

3,000 (15%)

3,100 (15%)

260 (1%)

20,000

   Total

23,000 (12%)

24,000 (12%)

140,000 (71%)

8,600 (4%)

190,000

NOx (tons/year, % of national total)

     

   Electricity

2,900 (4%)

9,300 (12%)

57,000 (74%)

7,500 (10%)

77,000

   Residential (NG + Oil)

6,800 (28%)

11,000 (44%)

4,700 (20%)

2,000 (8%)

24,000

   Total

9,700 (10%)

20,000 (20%)

62,000 (61%)

9,500 (9%)

100,000

  1. Note: Estimates are presented to two significant figures; sums may not add due to rounding. Percentages represent the fraction of benefits within each region.