{"id":564,"date":"2006-02-14T06:00:00","date_gmt":"2006-02-13T22:00:00","guid":{"rendered":"http:\/\/www.weather.org.hk\/blog\/?p=564"},"modified":"2010-11-11T18:27:32","modified_gmt":"2010-11-11T10:27:32","slug":"%e7%a9%ba%e6%b0%a3%e6%b1%a1%e6%9f%93","status":"publish","type":"post","link":"https:\/\/www.weather.org.hk\/news\/%e7%a9%ba%e6%b0%a3%e6%b1%a1%e6%9f%93\/","title":{"rendered":"\u7a7a\u6c23\u6c61\u67d3"},"content":{"rendered":"

\t\t\t\t\t\t\t\t\t<\/p>\n

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<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"

近年廣東及香港的空氣污染日趨嚴重，天空經常白濛濛一片。究竟甚麼是空氣污染？ 空氣中的污染物包括懸浮微粒、一氧化碳、硫氧化物、氮氧化物、碳氫化合物、臭氧和鉛等。廣東地區急劇發展，工業廢氣、發電廠燃燒含硫的煤、車輛燃燒含鉛汽油等都是造成污染的原因。 污染物會刺激五官及肺部造成不適。硫及氮的氧化物更呈酸性，與水汽接觸後會形成硫酸及硝酸微滴，侵蝕建築物及引致酸雨。污染物亦會阻礙空氣熱量散失，令溫室效應加劇。市區空氣不流通，熱島效應更明顯。熱島效應是指城市吸熱多散熱少的現象。 星期日的馬拉松賽事有多人不適，有人歸咎於空氣污染。翻查天氣情況，當日早上氣溫適中，但風力微弱，空氣污染指數相當高，路邊監測站在120以上，一般監測站（葵涌、東涌）也超過90。一股東風潮於早上八時後影響香港，風力增強，污染情況才慢慢改善。<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[4],"tags":[],"class_list":["post-564","post","type-post","status-publish","format-standard","hentry","category-4"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts\/564","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/comments?post=564"}],"version-history":[{"count":1,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts\/564\/revisions"}],"predecessor-version":[{"id":754,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts\/564\/revisions\/754"}],"wp:attachment":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/media?parent=564"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/categories?post=564"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/tags?post=564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}