biology

Occupational cancer

Occupational cancer is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Occupational cancer rather than just read about it. In short: Occupational cancers are cancers at least partly caused by exposures at work. Types commonly include lung cancer including mesothelioma, bladder cancer, and leukemia.

Key takeaways

Occupational cancer belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Occupational cancer to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Occupational cancer from memory before moving on to harder problems.

Reference excerpt

Occupational cancers are cancers at least partly caused by exposures at work. Types commonly include lung cancer including mesothelioma, bladder cancer, and leukemia. The period between exposure and onset of cancer is often more than 10 years. Risk factors include certain chemicals, radiation, and possibly shift work. Chemicals include asbestos, second hand smoke, silica dust, arsenic, radon, benzene, and diesel fumes. Other factors include frequency, amount, duration, and how the exposure occurs. Professions more commonly affected include farmers, miners, painters, firefighters, and manufacturers of aluminium and rubber. Prevention involves decreasing the use of certain chemicals and if this isn't possible limiting exposure to these substances, a process known as hierarchy of controls. This often involves regulation and protective equipment. Agencies often specify maximum allowed exposures and may put in place routine monitoring. International Agency for Research on Cancer (IARC) and American Conference of Governmental Industrial Hygienists (ACGIH) have classifications for a substances risk. Occupational cancer represents 2 to 8% of cancers and are responsible for about 3.5 to 5% of cancer deaths (350,000 in 2016). Males are more commonly affected than females. In the developed world they represent just over half of work related deaths. They were first identified in the 1700s by Percivall Pott among people who clean chimneys.

References

Illustrations

Worked examples

Example 1 — a first encounter with Occupational cancer

Start with the simplest possible case. Write down what Occupational cancer claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Occupational cancer before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Occupational cancer ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Occupational cancer

In research: Occupational cancer appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Occupational cancer in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Occupational cancer is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cancer, Occupational diseases, so understanding it makes those chapters shorter.
In everyday life: Look for Occupational cancer outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Occupational cancer in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Occupational cancer means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Occupational cancer out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Occupational cancer in simple terms?

Occupational cancers are cancers at least partly caused by exposures at work. Types commonly include lung cancer including mesothelioma, bladder cancer, and leukemia.

Why does Occupational cancer matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Occupational cancer?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Occupational cancer.