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CISDOC database

Document ID (ISN)109173
CIS number 09-162
ISSN - Serial title 0340-0131 - International Archives of Occupational and Environmental Health
Year 2008
Convention or series no.
Author(s) Westberg H., Egelrud L., Ohlson C.G., Hygerth M., Lundholm C.
Title Exposure to nitrous oxide in delivery suites at six Swedish hospitals
Bibliographic information July 2008, Vol.81, No.7, p.829-836. 19 ref.
Abstract Occupational exposures to nitrous oxide in delivery suites in six Swedish hospitals were evaluated, together with various scavenging techniques. 8h time-weighted averages (TWAs) and short-term (15 min) peak exposures were determined for 36 midwives and assistant midwives. Diffusive samplers were used for monitoring, and analysed by thermal desorption and gas chromatography-mass spectrometry (GC-MS). The effect on exposure of different types of scavenging systems was studied by mixed model analysis. Findings are discussed. A large number of TWAs exceeded the ACGIH-TLV. Masks connected to scavenging systems significantly reduced exposures. Furthermore, using a forced general air ventilation system in addition to improved working methods substantially improved the air quality in the delivery suites.
Descriptors (primary) Sweden; nitrous oxide; women; hospitals; health care personnel; exposure evaluation
Descriptors (secondary) threshold limit values; personal sampling; mass spectrometry; limitation of exposure; exhaust ventilation; gas chromatography; breathing atmosphere; safe working methods; sampling and analysis; statistical evaluation; determination in air; ventilation systems
Document type D - Periodical articles
Country / State or ProvinceSweden
Subject(s) Commerce, services, offices
Broad subject area(s) Chemical safety
Browse category(ies) Exposure evaluation
Health care services
Inorganic substances