不只化學毒物！搞懂職場中的「物理性危害」 More Than Just Chemicals! Understanding “Physical Hazards” in the Workplace

高溫、噪音、粉塵全解析 A Complete Guide to Heat, Noise, and Dust

第一章：高溫作業 — 不只是熱而已 Chapter 1: High-Temperature Work — More Than Just Heat

在鋼鐵廠、鍋爐房、玻璃廠等地方工作，勞工面臨的不只是熱，更是可能致命的健康威脅。 Working in places like steel mills, boiler rooms, or glass factories, workers face not just heat, but potentially fatal health threats.

• 主要危害：急性危害包括熱痙攣、熱衰竭，最嚴重的是可能致死的熱中暑。長期下來，持續的熱壓力會增加腎結石、慢性腎病和心血管疾病的風險。Main Hazards: Acute hazards include heat cramps, heat exhaustion, and the most severe, potentially fatal heatstroke. In the long term, continuous heat stress increases the risk of kidney stones, chronic kidney disease, and cardiovascular diseases.
• 監測指標：法規不只看溫度計，而是使用更科學的「綜合溫度熱指數(WBGT)」，它綜合了溫度、濕度和輻射熱，更能反映人體的真實感受。Monitoring Index: Regulations don’t just rely on a thermometer but use the more scientific “Wet Bulb Globe Temperature (WBGT)” index, which combines temperature, humidity, and radiant heat to better reflect the body’s actual experience.
• 健檢重點：抽血檢查腎功能 (BUN, Cr) 和電解質，評估是否因長期脫水而受損；並透過心電圖 (ECG) 評估心臟能否承受高溫下的負荷。Health Check Focus: Blood tests for kidney function (BUN, Cr) and electrolytes to assess damage from chronic dehydration, and an Electrocardiogram (ECG) to evaluate the heart’s ability to handle the load under high temperatures.

第二章：噪音作業 — 聽力的隱形殺手 Chapter 2: Noise Exposure — The Silent Killer of Hearing

長期在超過85分貝(dBA)的環境下工作，會對聽力造成不可逆的傷害。 Long-term work in environments exceeding 85 decibels (dBA) can cause irreversible damage to hearing.

• 主要危害：造成「噪音引致之聽力損失」(NIHL)，這是一種漸進性的神經損傷。長期噪音也是一種壓力源，可能增加高血壓、心肌梗塞的風險。Main Hazards: Causes “Noise-Induced Hearing Loss” (NIHL), a progressive nerve injury. Chronic noise is also a stressor that can increase the risk of hypertension and myocardial infarction.
• 健檢核心：「純音聽力檢查」是唯一的診斷工具。法規特別要求，檢查前必須脫離噪音環境至少14小時，以避免「暫時性聽力耗弱」干擾結果的準確性。Core Health Check: “Pure-tone audiometry” is the sole diagnostic tool. Regulations specifically require being away from the noisy environment for at least 14 hours before the test to avoid interference from “temporary threshold shift.”
• 判讀關鍵：職業性聽損的聽力圖，通常在 4000 或 6000 Hz 會有一個獨特的「V型凹陷」，但在 8000 Hz 會回升，這有助於和一般老年性聽損區分。Key to Interpretation: The audiogram for occupational hearing loss typically shows a unique “V-shaped notch” at 4000 or 6000 Hz, with recovery at 8000 Hz, which helps distinguish it from age-related hearing loss.

第三章：游離輻射作業 — 看不見的威脅 Chapter 3: Ionizing Radiation Work — The Unseen Threat

醫療、核能、工業檢測等領域的勞工，可能會接觸到X光、伽瑪射線等游離輻射。 Workers in fields such as medicine, nuclear energy, and industrial inspection may be exposed to ionizing radiation like X-rays and gamma rays.

• 主要危害：分為兩類。「確定效應」如皮膚灼傷、白內障，需要達到一定劑量才會發生。更令人擔憂的是「機率效應」，也就是癌症，任何劑量的暴露都可能增加其發生的「機率」，其中以白血病和甲狀腺癌的風險最高。Main Hazards: Divided into two types. “Deterministic effects” like skin burns and cataracts occur only after a certain dose threshold is reached. More concerning are the “stochastic effects,” namely cancer, where any amount of exposure can increase the “probability” of occurrence, with the highest risks for leukemia and thyroid cancer.
• 健檢重點：
  • 全血球計數 (CBC)：因為造血系統對輻射最敏感，定期追蹤血球變化是偵測早期傷害和白血病風險的關鍵。
  • 甲狀腺功能檢查 (Free T4, TSH)：監測甲狀腺這個高風險器官的健康狀況。
  Health Check Focus:
  • Complete Blood Count (CBC): Because the hematopoietic system is most sensitive to radiation, regular monitoring of blood cell changes is key to detecting early damage and leukemia risk.
  • Thyroid Function Tests (Free T4, TSH): To monitor the health of the thyroid, a high-risk organ.

第四章：異常氣壓作業 — 來自深海與隧道的壓力 Chapter 4: Abnormal Pressure Work — Pressure from the Deep Sea and Tunnels

潛水員和隧道工程（潛盾工法）的工人，身體會承受巨大的壓力變化，若減壓不當，後果非常嚴重。 Divers and tunnel workers (using shield tunneling methods) experience significant pressure changes; improper decompression can have very serious consequences.

• 主要危害：急性危害是「減壓症」（潛水夫病），因溶解在體內的氮氣形成氣泡，造成關節疼痛、神經損傷甚至死亡。最可怕的慢性後遺症是「異壓性骨壞死」，因氣泡堵塞血管，導致骨頭（特別是肩、髖關節）缺血性壞死，最終可能需要置換人工關節。Main Hazards: The acute hazard is “decompression sickness” (the bends), caused by nitrogen bubbles forming in the body, leading to joint pain, nerve damage, or even death. The most feared chronic sequela is “dysbaric osteonecrosis,” where gas bubbles block blood vessels, causing avascular necrosis of bones (especially shoulders and hips), potentially requiring joint replacement.
• 健檢重點：「長骨X光攝影」是監測骨壞死的唯一工具。由於骨壞死早期完全沒有症狀，定期的影像學追蹤至關重要。Health Check Focus: “Long bone X-rays” are the only tool for monitoring osteonecrosis. Since early-stage osteonecrosis is asymptomatic, regular imaging follow-up is crucial.

第五章：粉塵與石綿作業 — 致命的粉塵 Chapter 5: Dust and Asbestos Work — Deadly Dusts

礦業、營造、陶瓷、拆船等行業，勞工可能吸入致命的粉塵。 In industries like mining, construction, ceramics, and shipbreaking, workers may inhale fatal dust.

粉塵作業 Dust Exposure Work

• 主要危害：長期吸入礦物性粉塵（特別是結晶型游離二氧化矽），會導致肺部纖維化（結疤），形成無法治癒的「塵肺症」（矽肺症）。Main Hazards: Long-term inhalation of mineral dust (especially crystalline free silica) causes pulmonary fibrosis (scarring), leading to the incurable disease “pneumoconiosis” (silicosis).
• 健檢重點：胸部X光攝影和肺功能檢查是診斷的唯二工具。Health Check Focus: Chest X-rays and pulmonary function tests are the only two diagnostic tools.

第六章：總結：六大物理性危害健檢重點比較 Chapter 6: Summary: Comparison of Health Check Focus for the Six Physical Hazards

台灣的法規針對不同物理性危害，設計了精準的檢查方案，下表為您做一總結。 Taiwanese regulations have designed precise examination plans for different physical hazards. The table below provides a summary.