Daily roadside BTEX concentrations in East Asia measured by the Lanwatsu, Radiello and Ultra I SKS passive samplers.

Daily roadside BTEX concentrations in East Asia measured by the Lanwatsu, Radiello and Ultra I SKS passive samplers.

The Science of the total environment (2012-11-13)

Tran Thi Ngoc Lan, Nguyen Thi Thanh Binh

ZUSAMMENFASSUNG

A new home-made diffusive bag-type passive sampler called Lanwatsu was developed for benzene, toluene, ethylbenzene and xylene monitoring in roadside air. The passive samplers were outdoor validated and deployed together with two commercial passive samplers, Ultra I SKC Inc. and Radiello, for daily roadside air monitoring in East Asian cities including HoChiMinh, Hanoi, Cantho, Danang, Vungtau, Hue (Vietnam), Kuala Lumpur (Malaysia), Kyoto, Osaka (Japan), Nanjing (China) and Singapore in 2011. High daily benzene concentrations of 87, 52, 32, 23, 13, 12 and 48 µg/m³ were observed in HoChiMinh, Hanoi, Cantho, Danang, Hue, Vung Tau (Vietnam), and Kuala Lumpur (Malaysia), respectively. Kyoto and Osaka (Japan) were clean with daily benzene concentrations below 2.3 μg/m³. The daily benzene concentrations in Nanjing (China) and Singapore were 5.6 and 6.9 μg/m³, respectively. The three passive samplers were equivalent. Passive sampling by the Lanwatsu passive sampler is acceptable for daily outdoor benzene monitoring.

MATERIALIEN

Produktnummer

Marke

Produktbeschreibung

RAD130

radiello^™ Kartuschen-Adsorbenzien, for sampling BTEX and VOCs (CS₂ Desorption), matrix SS net (100 mesh, 5.8 mm diam.), activated with activated charcoal (30-50 mesh), pk of 20

RAD121

radiello^™ Dreieckige Trägerplatte, pk of 20

RAD165

radiello^™ Kartuschen-Adsorbenzien, for sampling Aldehydes, matrix SS net with 2,4-DNPH coated FLORISIL^®, pk of 20

RAD120

radiello^™ Diffusionskörper, white, configured for general use, pk of 20

RAD168

radiello^™ Kartuschen-Adsorbenzien, for sampling Ammonia (NH₃), matrix microporous PE impregnated with phosphoric acid, pk of 20

RAD1202

radiello^™ Diffusionskörper, yellow, configured for reduced sampling rates, pk of 20

RAD1201

radiello^™ Diffusionskörper, blue, configured for sampling light sensitive compounds, pk of 20

RAD145

radiello^™ Kartuschen-Adsorbenzien, for sampling BTEX and VOCs (thermal desorption), matrix SS net (3 x 8 μm, 4.8 mm diam.), Carbograph, pk of 20

RAD171

Supelco

radiello^™ Methylenblau-Kalibrierstandard für H₂S (Schwefelwasserstoff), pkg of 100 mL

RAD196

radiello^™ Freiluft-Schutzvorrichtung, pk of 10

RAD122

radiello^™ Vertikaler Adapter, threaded for standard use, pk of 20

RAD190

radiello^™ Strichcode-Etiketten, pk of 198

RAD130S

radiello^™ BTEX/VOC Starter Kit, CS2 Desorption

RAD132

radiello^™ Kartuschen-Adsorbenzien, for sampling Anaesthetic Gases/Vapors, matrix SS net with mix of mol sieve and activated charcoal (30-50 mesh), pk of 20

RAD145S

radiello^™ BTEX/VOC Starter Kit, Thermal Desorption

RAD407

Supelco

radiello^™ BTEX-Kalibrierkit (Thermische Desorption)

RAD174

radiello^™ Filtrations-Kit, pk of 20

RAD170S

radiello^™ Hydrogen Sulfide Starter Kit

RAD1992

radiello^™ Leerröhrchen zur Aufbewahrung, polypropylene (with stopper), volume 12 mL, pk of 100

RAD126

radiello^™ Feld-Thermometer, Includes one standard Radiello vertical adapter (RAD122) for each thermometer, configured for standard use, pk of 3

RAD125

radiello^™ Anesthetic Gases and Vapor Sampler

RAD302

Supelco

radiello^™ Aldehyd-Kalibrierstandard, 50 μg/mL each component in acetonitrile, pkg of 10 mL

RAD405

Supelco

radiello^™ BTEX-Kalibrierkit (CS₂ Desorption)

RAD1991

radiello^™ Leerröhrchen zur Aufbewahrung, glass (with stopper), volume 2.8 mL, pk of 100

RAD141S

radiello^™ 1,3-Butadiene Starter Kit, Thermal Desorption, pkg of 1 kit (2 RAD141 adsorbing cartridges and barcode labels, 1 RAD1202 yellow diffusive body, 1 RAD121 triangular support plate, 1 instruction sheet)

RAD195

radiello^™ Klemmen, suspending Radiello triangular support plate, pk of 20

RAD1203

radiello^™ Diffusionskörper, permeative, configured for anaesthetic gases and vapors, pk of 20

RAD127

radiello^™ Feld-Thermometer, Reader, pk of 1

RAD198

radiello^™ Ersatz-Montagegurte, for use with Radiello Outdoor Shelter, pk of 100