self –monitoring of sign and symptoms of pesticide...
TRANSCRIPT
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Self –monitoring of Sign and Symptoms of Pesticide
Poisoning by farmers occupationally exposed to pesticides
Report of a study conducted by Vikalpani Women’s Federation
co-sponsored by PANAP and Global Green grant Fund
Vikalpani Women’s Federation
No.117
Talahena
Malabe
Sri Lanka
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The Back Ground
For over a quarter century the Community Education Center has been working
“Towards alternatives” with programmes geared to protect nature and to better
people’s lives through enhancing knowledge. Since the first meeting between Anita
Fernando chairperson of CEC and Sarojini Rengam, Director, Pesticide Action
Network (Asia and Pacific) in 1994, their work expanded with a broader vision and
determination to make the world a better and healthier place for everyone. The
responsibility of this grave task was assigned to the Vikalpani National Women’s
Federation, which branched out from CEC, in 2001.
Chemical pesticides, which took over the traditional environment –friendly pest
control methods since the Green Revolution, has become a part and parcel of the
farming community in the world and Sri Lanka is no exception. The pesticide and
pharmaceutical industries thrived with ever increasing profits at the expense of poorer
farmers, unhealthy people and polluted environment. Although the level of toxicity
varies, Pesticides are poisons and harm intentionally or unintentionally, all organisms
that come into contact with them. Duped by attractive advertisements and being
unaware of the danger involved, farmers throughout the world continue to use more
and more pesticides. There is no escape from the vicious circle, which begins the
moment one purchases the first bottle of pesticide. Every year there are reports of
many farmers who end their lives burdened with heavy debts by drinking pesticides,
which are supposed to word off pests.
Concerned about the health of women in farming communities who directly come into
contact with pesticides constantly, inside and outside their humble abodes, PANAP
sponsored a survey. On women and Pesticides, which was carried out by CEC in
several parts of the island, in 1995. The findings of this survey involving 506 women
shocked CEC and they started conducting more awareness programmes on the hazard
of pesticides. Chandra Hewagallage, who co-ordinated the women’s activities,
underwent special training on all aspects of pesticides. One such workshop organized
by FAO conducted by Dr. Helen Murphy, medical Epidemiologist and health advisor
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in 2000, paved the way for this year –long study on self –monitoring of signs and
symptoms of pesticide poisoning among farmers who spray pesticides.
Similar studies have been conducted in Thailand, Cambodia, Malaysia and Vietnam
too.
Introduction
Sri Lanka is an Agricultural Country where the majority of the population does crop
cultivation as their main occupation. The main constrain of crop cultivation is
controlling pests & diseases, for which most farmers use chemical methods as it is
Easy, Quick & Efficient. But they do not think about the risk that they face during
mixing & application of pesticides.
On one hand people feel short-term acute poisoning signs & symptoms after spraying
of Pesticides, but they do not take that serious unless it is a threat to their normal life
style. On the other hand there is no occupational health history recording procedure in
Sri Lanka and hence connection between clinical signs and effect pesticides is missed.
If they feel serious they are admitted to the hospital & those cases are the only
available records of health problems due to Pesticides, but these records shows only
about 5 % of the acute poisoning cases, so most of the acute poisoning cases are not
recorded. The farmers are continuously exposed to the Pesticides, as farming is the
only option they have for a living. Although they neglect the signs & symptoms,
which are not serious at the moment, accumulation of those effects could lead to
chronic effects on them later.
With this background a study was done to find out all the acute Poisoning signs &
symptoms, which could be noticed by the operator after the spraying of Pesticides.
Farmers were advised to take care to get all the precautions in safety aspects. (Use of
face mask, hat, Clothes to cover all the body, not to use leaking spray tanks, not to eat,
drink or smoke while spraying etc.) However of the farmers did not seem to have
follow these instructions and they have sprayed on the way that they are normally
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doing. The reasons for this may be protective clothing are uncomfortable in hot
climate and uneasy to use.
The results showed that 23.6% of the farmers, who were used in the study, did not
have any effect to be recorded after the spraying of pesticides.
Dr. Murphy had classified thirty signs & symptoms in to three categories according to
the seriousness and it is given in the Table Number 1.
Those categories are Mild (1), moderate (2) & serious (3).
Table 1: Classification of signs and Symptoms into Categories
Serial No Sign or Symptom Category 1 Dizziness 1 2 Seizure 3 3 Loss of consciousness 3 4 Vomiting 2 5 Sore throat 1 6 Cough 1 7 Chest pain/ burning/tightness 2 8 Nausea 2 9 Stomach cramps 2 10 Numbness 1 11 Diarrhoea 2 12 Itchy skin 1 13 Sweating 1 14 Staggering gait 2 15 Skin rash/dryness/crack/scales 1 16 Muscle cramps 2 17 Tremor 2 18 Muscle weakness 1 19 Shortness of breath 1 20 Headache 1 21 Exhaustion 1 22 Burning nose 1 23 Blurred vision 2 24 Twitching eye lids 2 25 Insomnia 1 26 Red eyes 1 27 Burning eyes 1 28 Excessive tearing 1 29 Runny nose 1 30 Excessive salivation 1
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There were only two symptoms in the serious category. They were Seizure & Loss of
consciousness. 20 farmers throughout the study had reported that had felt the
symptoms in this category. This was reported in Monaragala Sevenagala, Kkirawa
and Kanthle they had felt these symptoms after spraying Tamaron (monocrotophos)
which is a WHO class I pesticide and (Malathion, Paraquat and Carbofuran)
Tamaron and Malathion banned in Sri Lanka, it is necessary to find out how
they come to the market. Most of the farmers had felt only mild symptoms.
(52.5%)
Materials & Method
This study was conducted using the voluntary members in the partner organizations of
the “Community Education Center” over a period of one year. 22 members were
trained to conduct the study by the help of Dr. Helen Murphy facilitated by
S.N.Lasantha Rathnaweera Research officer and Subhash S. Rathnaweera Agriculture
officer two officers from the Department of Agriculture. This was a “training of
trainers” session of Five days, which included the following subjects.
Identification of farmers for the study
Identification of Signs & symptoms correctly
Method of training them for the study
Method of recording the signs & symptoms
Method of entering the data in special sheets provided.
After the training, volunteers went to their destinations & selected the farmers who
are spraying pesticides, for the study. The selected numbers of farmers from each Site,
Partner organization of CEC who did the study are given in the table 2. There was no
special reason other than the destination of the Partner organizations, to select these
areas, but the majority of population of these areas is farmers.
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Table 2 : Number of Farmers selected for the study from each site
Site Part organization who do the servay Number of
Farmers
Moneragala Community Resources Protection Center 59
Wellavaya Uva Wellassa Farmer Women’s Organization 33
Thanthirimale Vanni community Development Foundation 21
Kantale Eastern United Women’s organization 42
Sevanagala Human Resources Youth Guild 41
Kekirawa Rajarata Jana Prbodhani Foundation 23
Total 219
The farmers were given one-day training by the volunteers to identify the acute signs
and symptoms. Most signs are common & therefore it was necessary to identify &
decide whether the effects are actually due to pesticide exposure. The farmers were
given a format to mark the signs & symptoms that they felt within 24 hours after each
spray session. Those formats were collected & data were entered by the trainers in to
the special sheets developed by the two officers of DOA, which could facilitate the
data entry in to the computer for analysis. These sheets were sent to the CEC head
office at Malabe. A data entry operator Inoka Udayangani Samaranayake entered data
to the computer for analysis and the findings one as follows are reported here.
This sheet contained Name, address, Gender of the application, Date of application,
Number of Tanks, Number of hours sprayed, Crops, Volume of the tank, name of the
pesticide and the all Signs/Symptoms marked in a schematic diagram farmers had
only to fill the relevant information and mark the Signs/Symptoms that they feed
within 24 hours after application of pesticides.
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Results
1. Monaragala
The study was performed by the members of the Community Resources
Protection Center in the area. They have selected 59 farmers for the study out of
which 9 were female. The farmers had used 23 types of pesticides as well as
pesticides mixtures in a single tank. 15 spray sessions were pesticides mixtures.
Farmers had used chlorpyrifos in 165 sessions, which is the highest number in the
Monaragala area in this study. Pesticides used are given in Figure Mo.1
Monocrotophos (Tamaron) had been used in 16 spray sessions. This WHO
class I pesticide is banned in Sri Lanka since 1995. Therefore further
investigation should be carried out to find out how this pesticide has gone to
the farmer
Figure Mo.1 - Pesticides used by the farmers in Monaragala area in the study
1634
22
6851
184
29 28 31
2 3 4 9 5 2 3 717 8 1 6 15
165
020406080
100120140160180
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Pesticides
9
Out of 548 spray sessions 364 are Insecticides, 139 are Fungicides, 31 are Weedicides
and 14 are other category. These are shown in Figure Mo.2
Figure Mo.2 - Percentages of each category of Pesticides used in Monaragala area
Insecticides66 %
Weedicides6 %
Fungicides25 %
Others3 %
In 365 sessions they have had mild effects, in 152 sessions moderate effects, in 85
sessions no effect and 13 sessions severe effects. Figure Mo.3 illustrate these
results graphically.
13.82
59.35
24.72
2.11
0
10
20
30
40
50
60
No effect Mild effect Moderateeffect
Severe effect
Effects
Figure Mo.3 - Percentages of effect categories in Monaragala area
10
The total number of signs/symptoms observed in Monaragala area in this study is
1783. Headache has been observed in 323 times followed by sweating, sore throat
and exhaustion. Total signs/symptoms observed are given in Figure Mo.4
Figure Mo.4 - Total Signs/Symptoms observed in Monaragala area
170
99 93 92 86 81 77 7137 36 34 26 20 20 18 17 17 16 15 10 8 8 7 5 4 0
323
153
128144
050
100150200250300350
Heada
che
Sweatin
g
Sore
thro
at
Exhau
stio
n
Exces
sive
saliv
atio
n
Itchy
skin
Inso
mni
aDizz
ines
sRed
eye
sCou
gh
Burni
ng n
ose
Burni
ng e
yes
Blurre
d vis
ion
Shortn
ess
of b
reat
h
Numbn
ess
Exces
sive
tear
ing
Nause
a
Stagg
erin
g ga
it
Mus
cle c
ram
psTr
emor
Runny
nos
e
Mus
cle w
eakn
ess
Twitc
hing
eye
lids
Vomitin
g
Chest
pai
n/bu
rnin
g/tig
...
Loss
of c
onsc
ious
ness
Stom
ach
cram
psSei
zure
Skin ra
sh/d
ryne
ss/c
ra...
Diarrh
oea
Pesticides
2. Wellawaya
The study was performed by the members of the Uva Wellassa Farmer Women’s
Organization in the area. They have selected 33 farmers for the study. The farmers
had used 29 types of pesticides Farmers had used Tebuconazole in 77 sessions,
which is the highest number in the Wellawaya area in this study. Pesticides used
are given in Figure We.1
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Figure We.1 - Pesticides used by the farmers in Wellawaya area
4755
41
30
6 7
22
77
20
4
23
4 28 4 6 4
24
111
6
18
5 2 1
15
1 2 20
102030405060708090
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Out of 401 spray sessions 247 are insecticides, 78 are Fungicides, 21 are Weedicides,
and 55 are other category. These are shown in Figure We.2
Figure We. 2-- Percentages of each category of Pesticides used in Wellawaya area
Insecticides62 %
Fungicides19 %
Weedicides5 %
Others14 %
12
In 188 sessions they have had mild effects, in 63 sessions moderate effects, in 151
sessions no effect severe effects and 12 sessions severe effects. Figure We.3 illustrate
these results graphically.
36.47
45.41
15.22
2.90
0
5
10
15
20
25
30
35
40
45
50
No effect Mild effect Moderate effect Severe effect
Effects
Figure We.3 - Percentages of effect catogory in Wellawaya area
The total number of signs/symptoms observed in Wellwaya area in this study is 847.
Dizziness has been observed in 164 times followed by headache, red eyes and burning
eyes. Total signs/symptoms observed are given in Figure We.4
Figure We.4 - Total Signs/Symptoms observed in Wellawaya area
164149
67 61 59 51 44 43 38 29 25 25 19 18 10 8 7 7 6 5 5 4 2 1 0 0 0 0 0 00
20
40
60
80
100
120
140
160
180
Dizzine
ss
Heada
che
Red e
yes
Burnin
g ey
es
Exhau
stion
Itchy
skin
Skin ra
sh/d
ryne
ss/cr
ack/s
cales
Blurre
d vis
ion
Shortn
ess o
f bre
ath
Twitchin
g ey
elids
Trem
or
Burnin
g no
se
Numbn
ess
Inso
mnia
Mus
cle w
eakn
ess
Seizur
e
Stagg
ering
gait
Exces
sive
tear
ing
Loss
of c
onsc
iousn
ess
Stom
ach
cram
ps
Mus
cle cr
amps
Runny
nos
e
Sore
thro
at
Exces
sive
saliv
ation
Vomitin
g
Cough
Chest
pain/
burn
ing/tig
htne
ss
Nause
a
Diarrh
oea
Sweatin
g
13
3. Thanthirimale
The study was performed by the members of the Vanni Community Development
Foundation in the area. They have selected 21 farmers for the study. The farmers
had used 18 types of pesticides and dimethoate in 40 sessions, which is the highest
number in the Thanthirimale area in this study. Pesticides used are given in
Figure Th.1
Figure Th.1 - Pesticides Used by the farmers in Thanthirimale area in the study
14
40
1810
1 3 1 2
15
3 610
2
11
2 3 2 4
05
1015202530354045
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Pesticides
Out of 133 spray sessions 99 are insecticides, 3 are Fungicides, 27 are Weedicides,
and 4 are other category. These are shown in Figure Th-2
Figure Th.2 - Percentages of each category of Pesticides Used in Thanthirimale area
Others3 %
Fungicides 2 %
Weedicides20 %
Insecticides 75 %
14
In 113 sessions they have had mild effects, in 45 sessions moderate effects, in 2
sessions no effect severe effect and 7 sessions severe effects. Figure Th.3 illustrate
these results in a graphically.
1.20
67.66
26.95
4.19
0
10
20
30
40
50
60
70
No effect Mild effect Moderateeffect
Severe effect
Effects
Figure Th.3 - Percentages of effect categories in Thantirimale area
The total number of signs/symptoms observed in Thanthirimale area in this study is
558. Sweating has been observed in 117 times followed by headache, Insomnia and
exhaustion. Total signs/symptoms observed are given in Figure Th.4
Figure Th.4 - Total signs/Symptoms observed in Thanthirimale area
117
7159 56
44 37 3020 18 16 15 15 11 10 10 10 9 9 8 7 6 4 3 3 2 1 1 0 0 0
0
20
40
60
80
100
120
140
Sweatin
g
Heada
che
Inso
mnia
Exhau
stion
Red e
yes
Burnin
g ey
es
Sore
thro
at
Exces
sive
saliv
ation
Mus
cle cr
amps
Nause
a
Dizzine
ss
Shortn
ess o
f bre
ath
Exces
sive
tear
ing
Mus
cle w
eakn
ess
Burnin
g no
se
Diarrh
oea
Cough
Runny
nos
e
Stagg
ering
gait
Blurre
d vis
ion
Twitchin
g ey
elids
Seizur
e
Stom
ach
cram
ps
Loss
of c
onsc
iousn
ess
Itchy
skin
Chest
pain/
burn
ing/tig
htne
ss
Numbn
ess
Vomitin
g
Skin ra
sh/d
ryne
ss/cr
ack/s
cales
Trem
or
Symptoms
15
4. Kanthale
The study was performed by the members of the Eastern United Women’s
organization in the area. They have selected 42 farmers for the study, out of which
5 were female. The farmers had used 26 types of pesticides and I pesticides
mixture in a single tank. Farmers had used chlorpyrifos in 22 sessions, which is
the highest number in the Kanthale area in this study. Pesticides used are given in
Figure Ka.1
Figure Ka.1 - Pesticides used by the farmers in Kanthale area in the study
22
6
1 25 4
2 1
17
10
25
10 9
20
2 1 25
13
1 1
63
1 1
0
5
10
15
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Man
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Pesticides
Out of 130 spray sessions 82 are insecticides, 17 are Fungicides, 27 are Weedicides,
and 4 are other category. These are shown in Figure Ka.2
Figure Ka.2 - Percentages of each category of Pesticides used in Kanthale area
Insecticides 63 %Weedicides
21 %
Fungicides 13 %
Others 3 %
16
In 99 sessions they have had mild effects, in 34 sessions moderate effects, in 24
sessions no effect severe effects and 11 sessions severe effects. Figure Ka.3 illustrate
these results in a graphically.
14.29
58.93
20.24
6.55
0
10
20
30
40
50
60
No effect Mild effect Moderateeffect
Severe effect
Effects
Figure Ka.3 - Percentages of effect category in Kanthale area
The total number of signs/symptoms observed in Kanthale area in this study is 255.
Exhaustion has been observed in 56 times followed by headache, dizziness and
sweating. Total signs/symptoms observed are given in Figure Ka.4
Figure Ka.4 - Total signs/Symptoms observed in Kanthale area
5645 43
16 12 10 9 9 6 6 5 5 5 5 5 4 4 2 2 2 1 1 1 1 0 0 0 0 0 00
10
20
30
40
50
60
Exhau
stion
Heada
che
Dizzine
ss
Sweatin
g
Chest
pain/
burn
ing/tig
htne
ss
Mus
cle cr
amps
Sore
thro
at
Burnin
g ey
es
Red e
yes
Seizur
e
Burnin
g no
se
Blurre
d vis
ion
Inso
mnia
Loss
of c
onsc
iousn
ess
Stom
ach
cram
ps
Itchy
skin
Stagg
ering
gait
Cough
Exces
sive
saliv
ation
Diarrh
oea
Vomitin
g
Nause
a
Shortn
ess o
f bre
ath
Runny
nos
e
Numbn
ess
Skin ra
sh/d
ryne
ss/cr
ack/s
...
Trem
or
Mus
cle w
eakn
ess
Twitchin
g ey
elids
Exces
sive
tear
ing
Symptoms
17
5. Sevanagala The study was performed by the members of the Human resources youth association
in the area. They have selected 41 farmers for the study. Out of which 2 were female.
The farmers had used 24 types of pesticides. Farmers had used Paraquat in 30
sessions, which is the highest number in the Sevanagala area in this study. Pesticides
used are given in Figure Se.1
Figure Se.1 - Pesticides used by the farmers in Sevanagala area in the study
68
6
1
6 5
30
17
23
1
64 3
15
12
1 1
15
22
12
2 220
5
10
15
20
25
30
35
chlo
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ate
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Man
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etof
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Out of 192 spray sessions 116 are insecticides, 7 are Fungicides, 50 are Weedicides,
and 19 are other category. These are shown in Figure Se.2
Figure Se.2 - Percentages of each category of Pesticides used in Sevanagala area
Others 10 %Fungicides
4 %Weedicides
26 %
Insecticides60 %
18
In 92 sessions they have had mild effects, in 73 sessions moderate effects, in 27
sessions no effect and severe effects has not been reported. Figure Se.3 illustrate these
results in a graphical way.
No effect Mild effect
Moderateeffect Severe effect
14.06
47.92
38.02
0.000
10
20
30
40
50
Effects
Figure Se.3 - Percentages of effect category in Sevanagala area
The total number of signs/symptoms observed in Sevanagale area in this study is 556.
Exhaustion has been observed in 60 times followed by headache, dizziness and
Burning eyes. Total signs/symptoms observed are given in Figure Se.4
Figure Se.4 - Total signs/Symptoms observed in Sevanagala area
60 59 55
4234 32
22 21 21 20 19 17 17 14 13 12 12 11 11 8 8 6 3 3 3 1 0 0
1616
0
10
20
30
40
50
60
70
Exhau
stion
Heada
che
Dizzine
ss
Burnin
g ey
es
Itchy
skin
Red e
yes
Burnin
g no
se
Sore
thro
at
Mus
cle cr
amps
Mus
cle w
eakn
ess
Inso
mnia
Sweatin
g
Exces
sive
saliv
ation
Blurre
d vis
ion
Twitchin
g ey
elids
Trem
or
Cough
Shortn
ess o
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ath
Runny
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e
Stom
ach
cram
ps
Exces
sive
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ing
Numbn
ess
Skin ra
sh/d
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ss/cr
ack/.
..
Stagg
ering
gait
Vomitin
g
Chest
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burn
ing/tig
htne
ss
Nause
a
Diarrh
oea
Seizur
e
Loss
of c
onsc
iousn
ess
19
6. Kekirawa
The study was performed by the members of the Rajarata Jana Prbodhani Foundation
in the area. They have selected 23 farmers for the study. The farmers had used 18
types of pesticides. Farmers had used bispyribac sodium in 17 sessions, which is the
highest number in the Kekirawa area in this study. Pesticides used are given in Figure
Ke.1
Figure Ke.1 - Pesticides used by the farmers in Kekirawa area in the study
15
9
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13
10
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16
2
17
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lath
ion
Per
met
hrin
fipro
nil
Pesticides
Out of 97 spray sessions 44 are insecticides, 5 are Fungicides, 47 are Weedicides, and
1 are other category. These are shown in Figure Ke.2
Figure Ke.2 - Percentages of each category of Pesticides used in Kekirawa area
Others 1 %
Fungicides 5 %
Insecticides 45 %
Weedicides49 %
20
In 41 sessions they have had mild effects, in 37 sessions moderate effects, in 45
sessions no effect and 32 sessions severe effects. Figure Ke.3 illustrate these
results in a graphically.
29.0326.45
23.8720.65
0
5
10
15
20
25
30
No effect Mild effect Moderateeffect
Severe effect
Effects
Figure Ke.3 - Percentages of effect category in Kekirawa area
The total number of signs/symptoms observed in Kekirawa area in this study is 270.
Exhaustion has been observed in 23 times followed by headache, sore throat and
sweating. Total signs/symptoms observed are given in Figure Ke.4
Figure Ke.4 - Total signs/Symptoms observed in Kekirawa area
2320 19 18 17 17
13 12 11 10 9 97 6 6 6 5 4 4 4 4 3 3 3 3 2 2 1
1613
0
5
10
15
20
25
Exhau
stion
Seizur
e
Heada
che
Sore
thro
at
Sweatin
g
Red e
yes
Burnin
g ey
es
Inso
mnia
Exces
sive
saliv
ation
Loss
of c
onsc
iousn
ess
Dizzine
ss
Itchy
skin
Chest
pain/
burn
ing/tig
htne
ss
Burnin
g no
se
Diarrh
oea
Numbn
ess
Shortn
ess o
f bre
ath
Nause
a
Blurre
d vis
ion
Mus
cle cr
amps
Cough
Stagg
ering
gait
Vomitin
g
Mus
cle w
eakn
ess
Twitchin
g ey
elids
Runny
nos
e
Exces
sive
tear
ing
Skin ra
sh/d
ryne
ss/cr
ack/s
cales
Trem
or
Stom
ach
cram
ps
Symptoms
21
7. Overall Results
Table Number 3 shows the number of spray sessions in each category in each site.
Percentages are given in parentheses. Maximum number of effects was found in mild
category that is 52.5%. Next highest is no effect category that is 23.6%. Moderate
effect category shows 19.5% and severe effects have been recorded in only 4.4%
sessions out of 1711 sessions through out the whole study. According to these results
majority of farmers have experienced mild effects after spraying of pesticides.
Figure 1 shows these results in a graphical diagram.
Table 3: Number of Spray sessions in each category
Site No effect Mild
effect
Moderate
effect
Severe
effect
Total
Moneragala 85 (13.8) 365 (59.3) 152 (24.7) 13(2.1) 615
Wellavaya 151 (36.5) 188 (45.4) 63 (15.2) 12(2.9) 414
Thanthirimale 2 (1.2) 113 (67.7) 45 (26.9) 7 (4.2) 167
Kantale 24 (14.3) 99 (58.9) 34 (20.2) 11 (6.5) 168
Sevanagala 27 (14.1) 92 (47.9) 73 (38.0) 0 (0) 192
Kekirawa 45 (29.0) 41 (26.5) 37 (23.9) 32 (20.6) 155
Total 334 (19.5) 898 (52.5) 404 (23.6) 75 (4.4) 1711
22
Figure 1 : Percentages of effect categories in overall study
19.5%
52.5%
23.6%
4.4%
0
10
20
30
40
50
60
No effect Mild effect Moderate effect Severe effect
Effects
Overall Effects
The pesticides used by the farmers & their category (Insecticides –I, Fungicides –F,
Weedicides –W, Other-O) are given in table 4. Number of Pesticides used by the
farmers in this study is 47. Out of these 25 are insecticides, 8 are Fungicides, 7 are
Weedicides and 7 are other category.
23
Table 4 : Pesticides sprayed by the farmers and their categories
Pesticide Category Pesticide Category
chlorpyrifos I prothiofos I dimethoate I fenvalerate O fenthion I methomyl O Mancozeb F acetamaprid I etofenprox I tebufenozide O MCPA W thiodicarb I propanil W carbaryl I sulfur I tridemorph O propineb F edifenphos O maneb F benomyl I coc F acephate I tebuconazole F oxadiazon W paraquat W fenobucarb I imidacloprid I carbendazim F carbosulfan I diazinon I quinalphos I carbofuran F bispyribac sodium W malathion I glyphosate W permethrin I phenthoate I fipronil I captan F esfenvalerate I profenofos I monocrotophos I chlofluazuron O Mixtures I pyrimiphos methyl I deltamethrin O fenoxaprop-p-ethyl W
24
Figure 2 shows break down of pesticides used in the whole study. Out of 1711
spray sessions 952 were Insecticides, 249 were Fungicides, 204 were Weedicides
and 98 were other pesticides. These results indicate that insecticides were used in
the highest number of spray sessions seconded by fungicides in this study.
Figure 2:
The above overall results were obtained from the collective data of six sites
Percentages of each category of Pesticides used through out the study
Others 6.5%
Weedicides 13.5%Fungicides
16.6% Insecticides 63.4%
25
Conclusions Following conclusions could be obtained from the result of this study
The majority of the farmers (52.5%) spraying pesticides feel mild acute
poisoning Signs/Symptoms within 24 hours after pesticide application.
Considerate amount of farmers (19.5%) do not feel any active poisoning
Signs/Symptoms after application of pesticides.
Very small amount of farmers (4.4%) felt l active poisoning Signs /Symptoms.
26
Recommendation
Action must be taken to remove from market all banned pesticides in Sri Lanka.