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Environmental and biological monitoring of workers exposed to methyl bromide through quarantine fumigation

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한국산업위생학회지 제11권 제3호(2001년 12월) J Korean Soc Occup Environ Hyg 2001;11(3):212-218

I. 서 론

브롬화메틸은 원목, 쌀, 목재, 과실류, 종자류 및 곡류 등 수입 농산물에 대한 검 역과정에서 해충, 곰팡이 및 선충류 등을 구제하기 위해 사용되는 가장 대표적인 농약이다. 또 다른 용도로는 토양 및 저장

식품의 훈증제, 소화제, 냉동제, 이온화장 치 그리고 양모의 탈지 등에 이용되기도 한다(정규철, 1995). 무색무취이나 고농 도에서는 클로로포름과 비슷한 냄새를 가 진 브롬계 화합물의 고독성 농약으로서 주로 호흡기와 피부를 통해 인체에 흡수 되므로 취급에 세심한 주의가 요구된다

(LaDou, 1997; M ller 등, 1999).

인체에 흡수된 브롬화메틸(methyl bro- mide)은 생체 내에서 알킬화 작용과 효소 억제작용 등을 통해 급성 폐 손상, 신세뇨 관 손상, 신경계 장해(Bauer, 1982; 정규철, 1995; LaDou, 1997), 피부의 세포독성(Ya- mamoto 등, 2000) 및 유전독성(Garrier 등, 1996) 등 여러 가지 독성 효과를 일으킨다.

이러한 강한 독성 때문에 조달청, 국립 농수산물검사소, 국립식물검역소, 담배인 삼공사, 농협, (사)한국수출입식물방제협

방역작업자의 브롬화메틸(methyl bromide) 노출수준과 생물학적 모니터링

이종성

이용학 신재훈 최정근 오차재

1)

정호근

한국산업안전공단 산업안전보건연구원, 부산대학교 의과대학 예방의학교실

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Jong-Seong Lee

Yong-Hag Lee Jae-Hoon Shin Jung-Keun Choi Cha-Jae O

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Ho-Keun Jung

Occupational Safty and Health Research Institute, Korea Occupational Safty and Health Agency, Department of Preventive and Occupational Medicine, College of Medicine, Pusan National University

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This study was performed to estimate environmental and biological monitoring of workers exposed to methyl bromide through quarantine fumigation. Airborne methyl bromide and it's metabolites were analyzed by gas chromatography and ion chromatography, respectively. The results are as followings;

airborne concentration of methyl bromide(TWA) was 2.08±

1.56 ppm(N=8). Dispersion and setting/degas groups were 0.67±0.12 ppm(N=2) and 2.54±1.53 ppm(N=6), respectively.

Bromide ion concentration in serum was 23.40±14.91㎎/ℓ (N=10) in the exposed workers and 4.74±0.82㎎/ℓ(N=21) in the non-exposed workers. Bromide ion concentration in urine was 35.56±26.89㎎/ℓ(N=11) in exposed group and 6.62±

2.31㎎/ℓ(N=21) in non-exposed group. Good correlation

was observed between concentration of serum and urine (r

2

=0.890 p<0.01). No significant correlations of other determinants were observed. Calculated from a regressive curve, the biological half lifes of serum and urine were 10.7 and 5.9 days.

In these results, biological monitoring of bromide ion of serum and urine provided useful information for evaluating exposure of workers to methyl bromide, so that an availability of bromide ion of biological samples was showed as biological monitoring indices for methyl bromide.

K e y W o r d s :Methyl bromide, Bromide ion, Bromomethane, Quarantine fumigator, Biological monitoring

접수일:2001년 11월 24일, 채택일:2001년 12월 14일

‡ 교신저자:이종성(경남 창원시 용호동 7-3 한국산업안전공단 산업안전보건연구원 산업역학조사센터

‡ 교신저자:Tel:055-269-0579, Fax:055-269-0596, E-mail:ljs5075@hanmail.net)

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