{"id":425110,"date":"2026-08-21T00:38:33","date_gmt":"2026-08-20T16:38:33","guid":{"rendered":"https:\/\/library.usj.edu.mo\/?post_type=tnc_col_19631_item&p=425110"},"modified":"2026-08-24T12:16:41","modified_gmt":"2026-08-24T04:16:41","slug":"%e6%8e%a2%e8%a8%8e%e6%9c%ac%e6%be%b3%e7%a4%be%e6%9c%83%e5%b7%a5%e4%bd%9c%e8%80%85%e9%80%b2%e4%bf%ae%e4%b8%bb%e9%ab%94%e4%b9%8b%e6%9c%89%e7%94%a8%e6%80%a7","status":"publish","type":"tnc_col_19631_item","link":"https:\/\/library.usj.edu.mo\/zh\/student-thesis-dissertation\/%e6%8e%a2%e8%a8%8e%e6%9c%ac%e6%be%b3%e7%a4%be%e6%9c%83%e5%b7%a5%e4%bd%9c%e8%80%85%e9%80%b2%e4%bf%ae%e4%b8%bb%e9%ab%94%e4%b9%8b%e6%9c%89%e7%94%a8%e6%80%a7\/","title":{"rendered":"\u63a2\u8a0e\u672c\u6fb3\u793e\u6703\u5de5\u4f5c\u8005\u9032\u4fee\u4e3b\u9ad4\u4e4b\u6709\u7528\u6027"},"content":{"rendered":"

ROAD DUST CONTAINS A VARIETY OF HEAVY METALS AND IS A WIDELY USED INDICATOR FOR MONITORING \u00a0 POLLUTION \u00a0 AND \u00a0 ASSESSING\u00a0 \u00a0 ENVIRONMENTAL \u00a0 AND \u00a0 HEALTH \u00a0 RISKS\u00a0 \u00a0 IN \u00a0 URBAN ECOSYSTEMS.\u00a0 IN THIS\u00a0 STUDY,\u00a0 ROAD\u00a0 DUST\u00a0 WAS\u00a0 COLLECTED\u00a0 FROM\u00a0 8\u00a0 REPRESENTATIVE\u00a0 AREAS\u00a0 IN MACAO. THE SPATIAL DISTRIBUTION OF HEAVY METAL CONTENT IN ROAD DUST IN MACAO WAS DETERMINED BY EXTRACTING THE HEAVY METAL CONTENT IN EACH SAMPLE. HEAVY METALS IN ROAD DUST ARE MAINLY FOUND ON BUSY ROADS, AND THE PRODUCTION OF THESE HEAVY METALS\u00a0 MAINLY\u00a0 COMES\u00a0 FROM THE\u00a0 PARTICLES\u00a0 WORN\u00a0 OFF\u00a0 IN\u00a0 THE\u00a0 WORK\u00a0 OF TRANSPORTATION VEHICLES, SUCH AS TIRES, BRAKE PADS, ROAD DUST, AND EMISSIONS FROM EXHAUST PIPES, THESE HEAVY METAL PARTICLES SCATTERED ON THE ROAD WILL REMAIN ON THE ROAD SURFACE FOR A LONG PERIOD AND CAUSE\u00a0 ENVIRONMENTAL POLLUTION.\u00a0 THIS\u00a0 SAMPLING WAS\u00a0 ALSO\u00a0 COLLECTED WHEN THERE WAS NO RAINFALL IN MACAO FOR MORE THAN 7 DAYS, WHICH ALSO ENSURED THAT THE HEAVY METAL CONTENT IN ROAD DUST DISTRIBUTED IN TIME AND SPACE WAS AS CLOSE TO ACCURATE DATA AS POSSIBLE. AT THE SAME TIME, IN THIS COLLECTION OF ROAD DUST REGULATIONS, THE SAMPLING IS STRICTLY FOLLOWED BY RECORDING THE AREA, TRAFFIC FLOW, WEATHER, HUMIDITY, AND OTHER FACTORS. THE ADDITION OF A LARGE STATISTICAL ANALYSIS OF VARIABLES HELPED TO CORRELATE\u00a0 THE\u00a0 ELEMENTS\u00a0 STUDIED\u00a0 WITH\u00a0 SEVERAL\u00a0 LOCAL\u00a0 SOURCES\u00a0 OF\u00a0 POLLUTION:\u00a0 FROM\u00a0 LOCAL INDUSTRIAL PLANTS\u00a0 AND RELATED ACTIVITIES, PAVEMENT MODIFICATIONS, POWER PLANTS,\u00a0 ROAD TRAFFIC, AND THE RESUSPENSION OF PARTICULATE MATTER (RPM). OUR FINDINGS SUGGEST THAT COMBINING CHEMICAL AND ISOTOPIC MONITORING OF ROAD DUST MAY HELP IMPLEMENT MORE EFFECTIVE\u00a0 ENVIRONMENTAL\u00a0 MANAGEMENT\u00a0 MEASURES \u00a0 TO\u00a0 REDUCE\u00a0 ITS\u00a0 ADVERSE\u00a0 EFFECTS\u00a0 ON ECOSYSTEMS AND HUMAN HEALTH. THIS STUDY ANALYZED THE TEMPORAL AND SPATIAL DISTRIBUTION OF HEAVY METALS IN ROAD DUST FROM DIFFERENT LOCATIONS IN MACAO, REVEALING THE CURRENT SITUATION OF HEAVY METAL POLLUTION AND ITS POTENTIAL THREAT TO HUMAN HEALTH. THE RESULTS SHOW THAT HEAVY METALS PRIMARILY ORIGINATED FROM HUMAN ACTIVITIES SUCH AS TRANSPORTATION EMISSIONS, INDUSTRIAL ACTIVITIES, AND ROAD CONSTRUCTION. THROUGH DETAILED ANALYSIS OF THE SAMPLING POINTS\u00a0 IN\u00a0 G 1-G8,\u00a0 IT\u00a0 WAS\u00a0 FOUND\u00a0 THAT\u00a0 THE\u00a0 CONCENTRATION\u00a0 OF\u00a0 HEAVY\u00a0 METALS\u00a0 VARIED SIGNIFICANTLY IN DIFFERENT AREAS, ESPECIALLY IN AREAS WITH HEAVY TRAFFIC FLOW, IN WHICH THE HEAVY METAL CONTENT WAS GENERALLY HIGHER.<\/p>","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","class_list":["post-425110","tnc_col_19631_item","type-tnc_col_19631_item","status-publish","format-standard","hentry","tnc_tax_19912-social-work","tnc_tax_19818-chinese","tnc_tax_19716-faculty-of-health-sciences","tnc_tax_19659-master-thesis","tnc_tax_19651-master"],"featured_img":false,"coauthors":[],"author_meta":{"author_link":"https:\/\/library.usj.edu.mo\/zh\/author\/emilychan\/","display_name":"emily chan"},"relative_dates":{"created":"Posted 2 \u9031 ago","modified":"Updated 1 \u9031 ago"},"absolute_dates":{"created":"Posted on 21 8 \u6708, 2026","modified":"Updated on 24 8 \u6708, 2026"},"absolute_dates_time":{"created":"Posted on 21 8 \u6708, 2026 12:38 \u4e0a\u5348","modified":"Updated on 24 8 \u6708, 2026 12:16 \u4e0b\u5348"},"featured_img_caption":"","tax_additional":{"tnc_tax_19912":{"linked":["SOCIAL WORK<\/a>"],"unlinked":["SOCIAL WORK<\/span>"],"slug":"tnc_tax_19912","name":"PROGRAMME"},"tnc_tax_19818":{"linked":["CHINESE<\/a>"],"unlinked":["CHINESE<\/span>"],"slug":"tnc_tax_19818","name":"LANGUAGE"},"tnc_tax_19765":{"linked":[],"unlinked":[],"slug":"tnc_tax_19765","name":"SUPERVISOR(S)"},"tnc_tax_19716":{"linked":["FACULTY OF HEALTH SCIENCES<\/a>"],"unlinked":["FACULTY OF HEALTH SCIENCES<\/span>"],"slug":"tnc_tax_19716","name":"FACULTY \/ RESEARCH UNIT"},"tnc_tax_19659":{"linked":["THESIS & DISSERTATION<\/a>"],"unlinked":["THESIS & DISSERTATION<\/span>"],"slug":"tnc_tax_19659","name":"Document Type"},"tnc_tax_19651":{"linked":["MASTER<\/a>"],"unlinked":["MASTER<\/span>"],"slug":"tnc_tax_19651","name":"DEGREE LEVEL"}},"series_order":"","_links":{"self":[{"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/tnc_col_19631_item\/425110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/tnc_col_19631_item"}],"about":[{"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/types\/tnc_col_19631_item"}],"replies":[{"embeddable":true,"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/comments?post=425110"}],"version-history":[{"count":1,"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/tnc_col_19631_item\/425110\/revisions"}],"predecessor-version":[{"id":431272,"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/tnc_col_19631_item\/425110\/revisions\/431272"}],"wp:attachment":[{"href":"https:\/\/library.usj.edu.mo\/zh\/wp-json\/wp\/v2\/media?parent=425110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}