Notice of RetractionMonitoring and Analyse of Indoor Air Quality at Several Important Public Spaces in HuaiNan

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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Indoor air quality has been a matter of public concern in recent years. In order to characterize indoor air quality at important public spaces in HuaiNan, two shopping malls, a waiting room of railway station, a teaching building and two restaurants were investigated. The indoor air contaminations measured included CO₂, NO₂, NO, TBC (total bacteria count), SO₂, PM₁₀ (particulate matters with aerodynamic diameter less than 10 μm), CO and VOCs (volatile organic compounds). The indoor and outdoor concentrations of these target air contaminations at these public spaces were measured and compared. The results indicated that indoor air of all public spaces except teaching building has relatively higher levels Of CO₂, NO₂, NO and TBC and their concentrations were higher than the Hong Kong Objective indoor air quality (HKIAQO) standard. Indoor SO₂ pollution was the most serious and the maximum SO₂ level reached 1880 μg/m³. For PM₁₀, some of them were above HKIAQO standard and concentrations of CO and VOCS were below the standard with a few exceptions for VOCs. Statistical analysis indicated that indoor air quality at these public spaces was poor and some advices were given to improve indoor air quality in HuaiNan.