[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-324018-105":59,"doc-detail-324018-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","chemical-health-risk-assessment-chra-at-organic-chemistry-laboratory-in-uitm-shah-alam","Chemical Health Risk Assessment (CHRA) at Organic Chemistry Laboratory in UiTM Shah Alam","","Chemical Health Risk Assessment (CHRA) was conducted at an organic chemistry laboratory (A606) within UiTM Shah Alam to identify health hazards from Chemical Hazardous to Health (CHTH) substances used in the workplace and to evaluate workers’ exposure via inhalation, dermal contact, or ingestion. CHRA was applied using recommended practice methods to identify hazards, assign hazard ratings, assess exposure levels, review existing control measures, and derive results and recommendations. Six chemicals were assessed, including 95% ethanol and methanol.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/chemical-health-risk-assessment-chra-at-organic-chemistry-laboratory-in-uitm-shah-alam/324018/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/chemical-health-risk-assessment-chra-at-organic-chemistry-laboratory-in-uitm-shah-alam/324018.png","ImageObject",300,407,{"name":92,"@type":93},"McQueen","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-13","2026-09-21",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",12,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is the purpose of the CHRA in this study?","Question",{"text":113,"@type":114},"To identify hazards from CHTH substances used in the workplace and to evaluate workers’ exposure degree through inhalation, dermal contact, or ingestion, using CHRA as a structured hazard assessment approach.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How many chemicals were assessed and which types were included?",{"text":118,"@type":114},"Six chemicals were assessed: Acetophenone 3-nitrobenzaldehyde, Benzalacetophenone Mixture, Sodium Hydroxide (NaOH), 95% Ethanol, and Methanol.",{"name":120,"@type":111,"acceptedAnswer":121},"Which chemicals showed the highest hazard and what exposure risk pattern was observed?",{"text":122,"@type":114},"The conclusion indicates that 95% Ethanol and Methanol posed the highest hazard and require appropriate safety precautions. Dermal exposure posed a higher risk overall than inhalation exposure, with more moderate and high-risk levels.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},324018,1790187215,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":81,"preview_page_count":4},5909890329169,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","Junior Science Communications  \nFaculty of Applied Sciences, UiTM Shah Alam [https://journal.uitm.edu.my/ojs/index.php/JSC](https://journal.uitm.edu.my/ojs/index.php/JSC)  \nColloquium on Applied Sciences 2 2024 8-14 July 2024, Faculty of Applied Sciences, UiTM Shah Alam, Malaysia  \nChemical Health Risk Assessment (CHRA) at Organic Chemistry Laboratory in UiTM Shah Alam  \nNur Irdina Sajiria, Sabiha Hanim Salleha*  \nStructured Abstract  \nBackground: This assessment was conducted at Organic Chemistry Lab, A606, which was an organic chemistry laboratory located at Faculty of Applied Science, UiTM Shah Alam. Besides, this assessment aims to identify the hazards posed by each Chemical Hazardous to Health (CHTH) use within the workplace and to evaluate the degree of exposure of workers to the Chemical Hazardous to Health (CHTH), either through inhalation, dermal or ingestion. Chemical Health Risk Assessment (CHRA) assists in the systematic identification and description of the hazards associated with the chemical substances.  \nMethods: Thus, the assessment used CHRA methods under the guidance of the third edition of a Manual of Recommended Practice on Assessment of the Health Risks Arising from the Use of Chemicals Hazardous to Health at the Workplace to identified chemicals, determined Hazard Rating, evaluated exposure, assessed the adequacy of the control measures that have been carried out, concluded the CHRA results, and identified the recommendations that need to be made. In this assessment, the work unit has assessed as the Organic Chemistry (OC) Laboratory Assistant. However, the CHTH also was identified which consists of 6 chemicals, Acetophenone 3-nitrobenzaldehyde, Benzalacetophenone Mixture, Sodium Hydroxide NaOH, 95% Ethanol, and Methanol.  \nResults: After conducted the CHRA, the results showed that the summary of overall risk level was determined which was for the inhalation risk level has High risk = 2, Moderate risk = 3 and low risk = 1 with the total of inhalation risk level were 6. Thus, the dermal risk level has High risk = 3, Moderate risk = 8 and low risk = 2 with the total of inhalation risk level were 13. So, it concluded that dermal exposure posed a higher risk with more moderate and high-risk level compared to inhalation exposure.  \nConclusion: Overall, the results showed that 95% Ethanol and Methanol have a highest hazard posed and should be managed with the appropriate safety precautions while the Acetophenone posed the lowest hazard.  \nKeywords: Chemical Health Risk Assessment (CHRA), degree of exposure, inhalation, dermal exposure, exposure evaluation  \n *Correspondence: [sabihahanim@uitm.edu.my](sabihahanim@uitm.edu.my)  \na School of Chemistry & Environment, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Malaysia","cbCaiejdSs7SAgQu","https://ap.wps.com/l/cbCaiejdSs7SAgQu","pdf",269258,"English","# Background\n# Methods\n# Results\n# Conclusion\n# Keywords","[{\"question\":\"What is the purpose of the CHRA in this study?\",\"answer\":\"To identify hazards from CHTH substances used in the workplace and to evaluate workers’ exposure degree through inhalation, dermal contact, or ingestion, using CHRA as a structured hazard assessment approach.\"},{\"question\":\"How many chemicals were assessed and which types were included?\",\"answer\":\"Six chemicals were assessed: Acetophenone 3-nitrobenzaldehyde, Benzalacetophenone Mixture, Sodium Hydroxide (NaOH), 95% Ethanol, and Methanol.\"},{\"question\":\"Which chemicals showed the highest hazard and what exposure risk pattern was observed?\",\"answer\":\"The conclusion indicates that 95% Ethanol and Methanol posed the highest hazard and require appropriate safety precautions. Dermal exposure posed a higher risk overall than inhalation exposure, with more moderate and high-risk levels.\"}]","Chemical Health Risk Assessment (CHRA) at Organic Chemistry Laboratory in UiTM Shah Alam | PDF",1789966810]