THE MEASUREMENT OF ATMOSPHERIC HYDROCHLORIC-ACID IN SOUTHERN CALIFORNIA

被引：19

作者：

APPEL, BR

TOKIWA, Y

POVARD, V

KOTHNY, EL

机构：

[1] Air and Industrial Hygiene Laboratory, California Department, Health Services, Berkeley, CA 94704-9980

来源：

ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS | 1991年 / 25卷 / 02期

关键词：

HYDROCHLORIC ACID; DENUDER DIFFERENCE METHOD; NYLON FILTERS; AIR CONCENTRATIONS;

D O I：

10.1016/0960-1686(91)90325-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The denuder difference method (DDM) for HNO3, involving two nylon filter samplers, one of which is preceded by an acid-gas denuder, can also provide measurements of acidic, gaseous chloride, likely to be HCl, at ambient atmospheric concentrations. Sampling at a face velocity of 24 cm s-1, nylon filters averaged 88% retention efficiency for up to 200-mu-g HCl. Nylon filters with a low and relatively constant Cl- blank are essential. Denuder tubes coated for 30 cm with MgO provided 94% removal efficiency for HCl and showed a very high capacity for this gaseous acid, at residence times similar to those used in atmospheric sampling. Concentrations of apparent HCl up to 4-mu-g m-3 (as Cl-) were measured at Claremont, CA, with the DDM.

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收藏

页码：525 / 527

页数：3

相关论文

共 13 条

[1] FIELD-MEASUREMENTS OF THE DISSOCIATION OF AMMONIUM-NITRATE AND AMMONIUM-CHLORIDE AEROSOLS [J].

ALLEN, AG ;

HARRISON, RM ;

ERISMAN, JW .

ATMOSPHERIC ENVIRONMENT, 1989, 23 (07) :1591-1599

[2]

Appel B. R., 1984, DETERMINATION ACIDIT

[3] SAMPLING OF NITRATES IN AMBIENT AIR [J].

APPEL, BR ;

TOKIWA, Y ;

HAIK, M .

ATMOSPHERIC ENVIRONMENT, 1981, 15 (03) :283-289

[4] EVALUATION OF PROCEDURES FOR MEASURING ATMOSPHERIC NITRIC-ACID AND AMMONIA [J].

APPEL, BR ;

TOKIWA, Y ;

KOTHNY, EL ;

WU, R ;

POVARD, V .

ATMOSPHERIC ENVIRONMENT, 1988, 22 (08) :1565-1573

[5]

APPEL BR, 1986, STUDIES DRY ACID DEP

[6] LIQUID-CHROMATOGRAPHY ANALYSIS OF CHLORIDE AND NITRATE WITH NEGATIVE ULTRAVIOLET DETECTION - AMBIENT LEVELS AND RELATIVE ABUNDANCE OF GAS-PHASE INORGANIC AND ORGANIC-ACIDS IN SOUTHERN-CALIFORNIA [J].

GROSJEAN, D .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1990, 24 (01) :77-81

[7] THE NITRIC-ACID SHOOTOUT - FIELD COMPARISON OF MEASUREMENT METHODS [J].

HERING, SV ;

LAWSON, DR ;

ALLEGRINI, I ;

FEBO, A ;

PERRINO, C ;

POSSANZINI, M ;

SICKLES, JE ;

ANLAUF, KG ;

WIEBE, A ;

APPEL, BR ;

JOHN, W ;

ONDO, J ;

WALL, S ;

BRAMAN, RS ;

SUTTON, R ;

CASS, GR ;

SOLOMON, PA ;

EATOUGH, DJ ;

EATOUGH, NL ;

ELLIS, EC ;

GROSJEAN, D ;

HICKS, BB ;

WOMACK, JD ;

HORROCKS, J ;

KNAPP, KT ;

ELLESTAD, TG ;

PAUR, RJ ;

MITCHELL, WJ ;

PLEASANT, M ;

PEAKE, E ;

MACLEAN, A ;

PIERSON, WR ;

BRACHACZEK, W ;

SCHIFF, HI ;

MACKAY, GI ;

SPICER, CW ;

STEDMAN, DH ;

WINER, AM ;

BIERMANN, HW ;

TUAZON, EC .

ATMOSPHERIC ENVIRONMENT, 1988, 22 (08) :1519-1539

[8] SIMULTANEOUS SAMPLING OF NH3, HNO3, HCL, SO2 AND H2O2 IN AMBIENT AIR BY A WET ANNULAR DENUDER SYSTEM [J].

KEUKEN, MP ;

SCHOONEBEEK, CAM ;

VANWENSVEENLOUTER, A ;

SLANINA, J .

ATMOSPHERIC ENVIRONMENT, 1988, 22 (11) :2541-2548

[9] THE NITROGEN SPECIES METHODS COMPARISON STUDY - AN OVERVIEW [J].

LAWSON, DR .

ATMOSPHERIC ENVIRONMENT, 1988, 22 (08) :1517-1517

[10] TROPOSPHERIC OXALATE [J].

NORTON, RB ;

ROBERTS, JM ;

HUEBERT, BJ .

GEOPHYSICAL RESEARCH LETTERS, 1983, 10 (07) :517-520