GAS-PHASE AND PARTICLE-PHASE CONCENTRATIONS OF ALPHA-HEXACHLOROCYCLOHEXANE, GAMMA-HEXACHLOROCYCLOHEXANE, AND HEXACHLOROBENZENE IN ONTARIO AIR

被引：54

作者：

LANE, DA ^{[1
]}

JOHNSON, ND ^{[1
]}

HANLEY, MJJ ^{[1
]}

SCHROEDER, WH ^{[1
]}

ORD, DT ^{[1
]}

机构：

[1] ORTECH INT,MISSISSAUGA L5K 1B3,ONTARIO,CANADA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1992年 / 26卷 / 01期

关键词：

D O I：

10.1021/es00025a013

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The airborne gas-phase and particle-phase concentrations of alpha-hexachlorocyclohexane (alpha-HCH), gamma-hexachlorocyclohexane (gamma-HCH), and hexachlorobenzene (HCB) were measured near Turkey Lake (in central Ontario) and at Pt. Petre (on the north shore of Lake Ontario) between the spring of 1987 and the spring of 1989 using a gas and particle (GAP) sampler which employs a multiannular diffusion denuder to trap the vapor-phase constituents. During October 1987 at Turkey Lake, HCB, alpha-HCH, and gamma-HCH were all exclusively in the vapor phase. At Pt. Petre, during November and March when comparable temperatures prevailed, the vapor-phase components for HCB, alpha-HCH, and gamma-HCH were 96.6%, 97.6%, and 100% respectively. The overall method detection limits for HCB, alpha-HCH and gamma-HCH were 7, 14, and 15 pg/m3. The alpha-HCH/gamma-HCH ratio was always greater than 1.8 and generally between 6 and 10, indicating the detection of technical grade HCH and/or the environmental isomerization of the gamma-form to the alpha-form.

引用

页码：126 / 133

页数：8

共 39 条

[1] GLOBAL TRANSPORT OF ORGANIC POLLUTANTS - AMBIENT CONCENTRATIONS IN THE REMOTE MARINE ATMOSPHERE [J].