2 Health and exposure risk assessment of heavy metals in rainwater samples from selected locations in Rivers State, Nigeria

2021 ◽  
pp. 13-26
Author(s):  
Daniel Omeodisemi Omokpariola ◽  
Patrick Leonard Omokpariola
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Exposure Risk ◽  
Rivers State ◽  
Exposure Risk Assessment

Health and exposure risk assessment of heavy metals in rainwater samples from selected locations in Rivers State, Nigeria

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Daniel Omeodisemi Omokpariola ◽  
Patrick Leonard Omokpariola
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Inductively Coupled Plasma ◽  
Carcinogenic Risk ◽  
Average Concentration ◽  
Special Treatment ◽  
Exposure Risk ◽  
Carcinogenic Risk Assessment ◽  
Rivers State ◽  
Exposure Risk Assessment

Abstract Rainwater has being getting popularity in use due to lack of portable water sources in Nigeria. The study seeks to evaluate the health and exposure risk assessment of heavy metals from the usage of rainwater from inhabitants of four oil producing area of Rivers State, Nigeria. A total of 32 rainwater samples were collected from different sampling surfaces (ambient, zinc, aluminium, asbestos and stone-coated) to analyse for arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), mercury (Hg), lead (Pb) and zinc (Zn) using inductively coupled plasma – optical emission spectrophotometer. Analysed concentration (mg/L) showed varying results across different sampling surfaces converted to average concentration (mg/kg) was below WHO/FAO recommended guideline with no issue associated. Health and Exposure risk assessment were performed on analysed results from rainwater samples as non-carcinogenic risk assessment showed that HI value is less than 1.0 indicating no risk to population who consumes rainwater across different roofing surfaces in Rivers state. Carcinogenic risk assessment showed that chromium-VI were found to be the highest contributor to cancer risk across all sampling surfaces. Special treatment and regulations should be taken into consideration especially on stone-coated roof before administering to children, as they are prone to health issues due to developing immunity compared to adults.

scholarly journals Feasibility Assessment of Wearable Respiratory Monitors for Ambulatory Inhalation Topography

2021 ◽  
Vol 18 (6) ◽  
pp. 2990
Author(s):  
Shehan Jayasekera ◽  
Edward Hensel ◽  
Risa Robinson
Keyword(s):  
Risk Assessment ◽  
Heart Rate ◽  
Breathing Frequency ◽  
Exposure Risk ◽  
Analysis Software ◽  
Toxicant Exposure ◽  
Motion Data ◽  
Feasibility Assessment ◽  
Cardiopulmonary Performance ◽  
Exposure Risk Assessment

Background: Natural environment inhalation topography provides useful information for toxicant exposure, risk assessment and cardiopulmonary performance. Commercially available wearable respiratory monitors (WRMs), which are currently used to measure a variety of physiological parameters such as heart rate and breathing frequency, can be leveraged to obtain inhalation topography, yet little work has been done. This paper assesses the feasibility of adapting these WRMs for measuring inhalation topography. Methods: Commercially available WRMs were compiled and assessed for the ability to report chest motion, data analysis software features, ambulatory observation capabilities, participant acceptability, purchasing constraints and affordability. Results: The following WRMs were found: LifeShirt, Equivital EQ02 LifeMonitor, Smartex WWS, Hexoskin Smart Garment, Zephyr BioHarness, Nox T3&A1, BioRadio, SleepSense Inductance Band, and ezRIP & zRIP Durabelt. None of the WRMs satisfied all six assessment criteria in a manner enabling them to be used for inhalation topography without modification and development. Conclusions: The results indicate that there are WRMs with core technologies and characteristics that can be built upon for ambulatory inhalation topography measurement in the NE.

Carbonyl compounds in different stages of vinification and exposure risk assessment through Merlot wine consumption

2018 ◽  
Vol 35 (12) ◽  
pp. 2315-2331 ◽  
Author(s):  
Daiani Cecchin Ferreira ◽  
Karine Primieri Nicolli ◽  
Érica A. Souza-Silva ◽  
Vitor Manfroi ◽  
Claudia Alcaraz Zini ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Carbonyl Compounds ◽  
Exposure Risk ◽  
Wine Consumption ◽  
Exposure Risk Assessment

Co-occurrence of aflatoxins and ochratoxin A in dried fruits in Iran: Dietary exposure risk assessment

2017 ◽  
Vol 106 ◽  
pp. 202-208 ◽  
Author(s):  
Ali Heshmati ◽  
Tahereh Zohrevand ◽  
Amin Mousavi Khaneghah ◽  
Amir Sasan Mozaffari Nejad ◽  
Anderson S. Sant’Ana
Keyword(s):  
Risk Assessment ◽  
Ochratoxin A ◽  
Dietary Exposure ◽  
Exposure Risk ◽  
Dried Fruits ◽  
Exposure Risk Assessment
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