A Review of Air Pollutants in the Ship Breaking and Recycling Industries in Chittagong, Bangladesh. Mohammad Dain Shah Munna Applied Chemistry and Chemical Engineering University of Chittagong

1. Supervisor:
Dr. Suman Barua
Assistant Professor
Department of Applied Chemistry
and Chemical Engineering
University of Chittagong
Presented By:
Mohammad Dain Shah Munna
Dept. of Applied Chemistry and
Chemical Engineering
University of Chittagong
I.D.- 14209002

2. Focus
 Background
 Source of air pollutants
 Objectives
 Study Area
 Methodology
 Analysis
 Result & Discussion

3. Background of SBRI
Bangladesh
27%
China
20%
India
29%
Pakistan
17%
Others
7%
Pakistan
19%
China
25%
India
34%
Bangladesh
19%
Turkey
3%
1980-1999 2010-2016

4. Source of air pollutants in SBRI
From hull of Ship Primary & Secondary Cutting

5. Objectives
 To get a general overview of the SBRI.
 To identify the source of air pollution in the study area.
 To assess the impact of air on environment.
 To recommend the steps to be taken to comply with
pollution in a sustainable manner.

6. Study Area
 Sitakunda, Chittagong, Bangladesh.

7. Methodology
Analyzed from different research paper & website.

8. Analysis
 Ammonia
 Generally 0.2 mg/l
 One record 1.2 mg/l
in 2012
 For marine fish:
0.035 to 0.081 mg/l
0
0.2
0.4
0.6
0.8
1
1.2
1.4
A B C D E F G H I J K L M N O
2012 2013 2014 2015 2016
Fig. : Ammonia Concentration (mg/l) in different
area in Chittagong Shipyard (Source: DoE)

9.  Suspended particulate matter
 100 - 180 µg/m3
 Standard limit
<200 µg/m3
0
20
40
60
80
100
120
140
160
180
200
A B C D E G H I J K L M N
2012 2013 2014 2015 2016
Fig. : SPM (µg/m3) in different area in
Chittagong Shipyard (Source: DoE)

10.  SOx
 4.1-7.6 µg/m3
 Standard limit
<80 µg/m3
0
1
2
3
4
5
6
7
8
SOx (µg/m3)
2012 2013 2014 2015 2016
Fig. : SOx (µg/m3) in different area in
Chittagong Shipyard (Source: DoE)

11.  NOx
 7.5-14.2 µg/m3
 Standard limit
<100 µg/m3
0
2
4
6
8
10
12
14
16
NOx (µg/m3)
2012 2013 2014 2015 2016
Fig. : NOx (µg/m3) in different area in
Chittagong Shipyard (Source: DoE)

12.  Polycyclic
Aromatic
Hydrocarbons
(PCBs)

13.  Dichlorodiphen
yltrichloroetha
ne (DDTs)

14.  Hexachlorobenzene
(HCB)

15. Result & Discussion
High level of Ammonia causes of
marine life-
 Loss of equilibrium of ecosystem.
 Increased respiratory activity.
 Increased heart rate.
 Poisoning slows growth and lowers disease
resistance in fish.

16. Result & Discussion
 PAHs, PCBs and HCB are
highest levels in sites near the
shipbreaking yards.
 DDTs and SCCPs were at their
higher levels in urban areas
than Ship breaking sites.
 PAH has above carcinogenic
risk limits which set by WHO.
(1 mg/kg); For baby- 0.5 mg/kg.
Fig: Food Chain

17. Thank You All