Bioaccumulation for some heavy metals on the impact of irrigating soil and plant with wastes of al-Muamirah station

Abstract EN

In order to evaluate the state of soil and plant contamination, studying some physical and chemical properties affecting the behavior of heavy metals as a result of irrigation with wastewater of Al-Muamirah station.

The present study selected five locations located between two longitudes "111 ˊ24 32°-"282 ˊ25 32° N and two latitudes "232 ˊ28 44°- "279 ˊ28 44° E for agricultural soils in Babylon province.

The positive ions exchange capacity was between (12.

05-40.

47 cmol q.

kg-1).

The content of calcium carbonate for the study of soil was between (221.

70-437.

70 g.

kg-1).

The total concentration of heavy metals (lead, zinc, copper) was within the limits of the World Health Organization (WHO, 2003).

Cadmium exceeded the allowed limits for the soil of the station only.

The heavy metal content of zinc and copper in all parts of the Alfalfa and Barley plant was within the limits of the organization while the elements of lead and cadmium exceeded the permissible limits.

The values of Bioconcentration factor (BCF) from soil to root were for lead (0.

34), cadmium (0.

47), zinc (0.

35) and copper (0.

43) for the growing Alfalfa plant in the station.

It amounted to (0.

31, 0.

38, 0.

34, 0.

47; 0.

34, 0.

32, 0.

37, 0.

33) in Al-Rasheed and Al-Rifaaiya soils.

It amounted to (0.

51, 0.

31, 0.

47, 0.

56; 0.

41, 0.

38, 0.

41, 0.

38) in the two control soils (Prophet Ayyub (peace be upon him) and Al-Sayyah), respectively.

As for the bioconcentration factor from soil to stem was lower than that in the dry matter for the root for each of the study soils.

The bioconcentration factor from the soil to the root for the growing barley plant was higher from the soil to the stem for most heavy metals in the study soils, The translocation factor (TF) of Alfalfa plant from root to the grew leaves in the study soils amounted to (0.

40, 0.

39, 0.

70, 0.

59; 0.

46, 0.

58, 0.

83, 0.

51; 0.

68, 0.

51, 0.

59, 0.

80), respectively.

It amounted to (0.

30, 0.

64, 0.

47 and 0.

34; 0.

67, 0.

28, 0.

48, 0.

60) at the two control soils of Prophet Ayyub (peace be upon him) and Al-Sayyah for the mentioned elements under study, respectively.

As for the results of the translocation factor from the root to the stem are lower than the translocation factor from root to leaves in both affected and control soils.

Likewise, the translocation factor for barley from root to leaves was higher than root to stem.