A Least-Cost Approach to Personal Exposure Reduction

This paper will discuss about the immaterial costs and production yields at one of the refined sugar factory companies in Makassar, South Sulawesi. The theory is based on the fact that Immaterial is a cost that is almsgiving, meaning costs that are outside of the basic costs of the company in producing production, so this research aims to find out: (1) what is the production cost needed to produce this production, (2) the maximum level of production at company from 2013 to 2017. This type of research is a quantitative study because it uses a questionnaire in the form of values that are processed using the marginal cost approach formula. The results of the analysis show that (1) the maximum level of production costs occurred in 2016 amounting to 6,912 with an Immaterial cost of Rp. 2,481,796,800 and the total production produced is 359,077.3 tons (2) The required workforce with the total production produced is 359,077.3 tones of 180 people including the maximum production point which means that the lowest value is achieved (optimal).

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Solid Phase Excitation-Emission Matrix Spectroscopy for In-Situ Chemical Analysis of Combustion Aerosols

10.26434/chemrxiv.12167865.v1 ◽

2020 ◽

Author(s):

Gaurav Mahamuni ◽

Jiayang He ◽

Jay Rutherford ◽

Byron Ockerman ◽

Edmund Seto ◽

...

Keyword(s):

Chemical Analysis ◽

Cigarette Smoke ◽

Forest Fires ◽

Solid Phase ◽

Incident Angle ◽

Personal Exposure ◽

Traffic Emission ◽

Excitation Emission Matrix ◽

Internal Excitation

<p>Exposure to combustion generated aerosols such as PM from residential woodburning, forest fires, cigarette smoke, and traffic emission have been linked to adverse health outcomes. It is important to assess the chemical composition of PM to examine personal exposure. Excitation-emission matrix (EEM) spectroscopy has been shown as a sensitive and cost-effective technique for evaluation of combustion PM composition and as a source apportionment tool. However, EEM measurements are hindered by a solvent extraction step and a need for benchtop instrumentation. Here, we present a methodology that eliminates this labor-intensive sample preparation and allows to automate and miniaturize the detection platform. A miniature electrostatic collector deposits PM sample onto transparent polydimethylsiloxane (PDMS) coated substrate, where PAH components are extracted into solid-phase (SP) solvent and analyzed using EEM spectroscopy in-situ. We evaluated external and internal excitation schemes to optimized signal to noise ratio. Analysis of woodsmoke and cigarette smoke samples showed good agreement with liquid extraction EEM spectra. Internal excitation is hindered by fluorescent interference from PDMS at λ<250nm. The external excitation EEM spectra are dependent on the incident angle; ranges of 30-40⁰ and 55-65⁰ showed the best results. The proposed SP-EEM technique can be used for development of miniaturized sensors for chemical analysis of combustion generated PM. </p>

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Faculty Opinions recommendation of Personal exposure to particulate matter is associated with worse health perception in adult asthma.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.726149835.793514682 ◽

2016 ◽

Author(s):

Nadia Hansel

Keyword(s):

Particulate Matter ◽

Personal Exposure ◽

Health Perception ◽

Adult Asthma

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Comparison of environmental and personal exposure concentration of dust

Korean Journal of Occupational and Environmental Medicine ◽

10.35371/kjoem.1993.5.2.171 ◽

1993 ◽

Vol 5 (2) ◽

pp. 171

Author(s):

Chan Ho Kim ◽

Jin Ho Chun ◽

Hae Sook Shon ◽

Byung Chul Yoo ◽

Seong Yong Choi ◽

...

Keyword(s):

Personal Exposure ◽

Exposure Concentration

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Improving the Protection of Children Against Air Pollution Threats in Romania � The RokidAIR Project Approach and Future Perspectives

Revista de Chimie ◽

10.37358/rc.17.4.5563 ◽

2017 ◽

Vol 68 (4) ◽

pp. 841-846

Author(s):

Hai-Ying Liu ◽

Daniel Dunea ◽

Mihaela Oprea ◽

Tom Savu ◽

Stefania Iordache

Keyword(s):

Air Pollution ◽

Air Quality ◽

Health Effects ◽

Urban Areas ◽

Behavioural Change ◽

Health Assessment ◽

Warning System ◽

Personal Exposure ◽

Mobile Technologies ◽

Quality Maps

This paper presents the approach used to develop the information chain required to reach the objectives of the EEA Grants� RokidAIR project in two Romanian cities i.e., Targoviste and Ploiesti. It describes the PM2.5 monitoring infrastructure and architecture to the web-based GIS platform, the early warning system and the decision support system, and finally, the linking of air pollution to health effects in children. In addition, it shows the analysis performance of the designed system to process the collected time series from various data sources using the benzene concentrations monitored in Ploiesti. Moreover, this paper suggests that biomarkers, mobile technologies, and Citizens� Observatories are potential perspectives to improve data coverage by the provision of near-real-time air quality maps, and provide personal exposure and health assessment results, enabling the citizens� engagement and behavioural change. This paper also addresses new fields in nature-based solutions to improve air quality, and studies on air pollution and its mental health effects in the urban areas of Romania.

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An Error Cost Approach to Competition Issues in Closed gTLDs

SSRN Electronic Journal ◽

10.2139/ssrn.2235894 ◽

2013 ◽

Author(s):

Geoffrey A. Manne ◽

Berin Michael Szoka

Keyword(s):

Cost Approach ◽

Error Cost

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