| 1. | An underground methane and coal dust explosion in Ukraine kills at least 50.
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| 2. | Use of improper explosives underground can also cause methane and coal dust explosions.
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| 3. | 2001-An underground methane and coal dust explosion in Ukraine, kills at least 50.
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| 4. | Flooding and coal dust explosions in some mines required improved ventilation and pumping engines.
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| 5. | On 1 March 1927 an underground gas and coal dust explosion killed 52 men.
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| 6. | Firedamp explosions can trigger the much-more-dangerous coal dust explosions, which can engulf an entire pit.
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| 7. | This is to prevent coal dust explosions and also to prevent the incidence of black lung disease.
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| 8. | Firedamp explosions continued, often setting off coal dust explosions, so casualties grew during the entire 19th century.
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| 9. | Firedamp explosions can trigger the much more dangerous coal dust explosions, which can engulf an entire pit.
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| 10. | It is thought to have been caused by a methane explosion followed by a coal dust explosion.
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