Table 4 Removal efficiencies after 120 days of the field trial.

From: Phyto-Fenton remediation of a dichloro-diphenyl-trichloroethane contaminated site in Ha Tinh Province, Vietnam

Treatment

Ha Tinh trial (2021)

Bac Giang trial (2017)

RE (%)

Final DDTs (mg kg−1)

RE (%)

Final DDTs (mg kg−1)

A1

97.4

0.022

  

B1

98.4

0.009*

71.8

0.0208**

C1

82.5

0.210

  

A2

 ~ 100%***

nd

  

B2

86.3

0.035

  

C2

–

–

  
  1. *The concentration is below the permissible threshold of 0.01 mg kg−1 set by the national technical regulation QCVN 15:2008/BTNMT. **Results obtained in the previous trial12. ***Assumed value, since the final content of DDTs is undetectable or below the detection limit of the method in samples taken from this lot.
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