BEHP-bis-2-ethyl hexyl phthalate (on RBC Table listed under “phthalates“) 1. For each compound,...

Question

BEHP-bis-2-ethyl hexyl phthalate (on RBC Table listed under “phthalates“)      1. For each compound, determine if the maximum concentration is above USEPA RBCscreening values.      2. Determine the daily intake for all compounds listed in Table 1 from dermal contact of soils by residents. Note that some chemicals may require evaluation as both carcinogens and non-carcinogens.      3. Determine the daily intake for all compounds listed in Table 1 from incidental ingestion of soils by residents.      4. Determine the intake for all compounds listed in Table 1 from ingestion of water by on-site residents.      5. Determine the intake for all compounds listed in Table 1 from inhalation of contaminants by on-site resident child.   Attachments: 
	
Document Preview: Midterm ExamES 514Environmental Risk AssessmentTable 1AirGroundwaterSoilChemicalMax, mg/m3Max, mg/LMax, mg/kgChlorobenzene8.09e-81.10e-26.40Chloroform3.12e-127.60e-34.101,2-Dichloroethane2.40e-82.00e-32.2BEHP8.29e-7.0102.30e2BEHP-bis-2-ethyl hexyl phthalate (on RBC Table listed under “phthalates“)1.  For each compound, determine if the maximum concentration is above USEPA RBC  screening values.2.  Determine the daily intake  for all compounds listed in Table 1 from dermal contact of soils by residents. Note that some chemicals may require evaluation as both carcinogens and non-carcinogens.3.  Determine the daily intake for all compounds listed in Table 1 from incidental ingestion of soils by residents.4. Determine the intake for all compounds listed in Table 1 from ingestion of water by on-site residents.5. Determine the intake for all compounds listed in Table 1 from inhalation of contaminants by on-site resident child.

David · Accepted Answer

Given Data Table 
 Air Groundwater Soil 
Chemical  Max, mg/m3  Max, mg/L  Max, mg/kg 
Chlorobenzene  8.09e-8  1.10e-2  6.40 
Chloroform  3.12e-12  7.60e-3  4.10 
1,2-Dichloroethane  2.40e-8  2.00e-3  2.2 
BEHP  8.29e-7  .010  2.30e2
       
BEHP-bis-2-ethyl hexyl phthalate (on RBC Table listed under “phthalates“)
1. For each compound, determine if the maximum concentration is above USEPA RBC 
screening values. 
Answer 
As per USEPA RBC screening Value,  
 Air Groundwater Soil 
Chemical  Max, mg/m3  Max, mg/L  Max, mg/kg 
Chlorobenzene  5.2e+2  5.3e-2  2.8e+2 
Chloroform  1.2e-1  6.1e-5  3.2e-1 
1,2-Dichloroethane  1.8  7.8e-4  4.6e-1 
BEHP  1.2  1.3  3.9e+1
As per the above table we can see that, 1,2 di-chloro ethane is above the screening level in ground 
water and soil and BEHP is above careening value in soil.
2. Determine the daily intake for all compounds listed in Table 1 from dermal contact of soils 
by residents.

BEHP-bis-2-ethyl hexyl phthalate (on RBC Table listed under “phthalates“) 1. For each compound, determine if the maximum concentration is above USEPA RBCscreening values. 2. Determine the daily intake...

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