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Course information comes from the public UCLA General Catalog. Requisites are read from UCLA’s published wording and can be incomplete or out of date — check the official catalog listing and your department adviser before you enroll.

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ENV HLT 252EIdentification and Measurement of Gases and Vapors

Environmental Health Sciences · 4 units · Graduate courses (200-299)

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Theoretical and practical aspects of industrial hygiene sampling and measurement of gases and vapors.

Letter grading.

When it runs

  • Winter 2026
  • Winter 2027

Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.

Requisites

Official UCLA wording

Preparation: one year each of chemistry, physics, and calculus.

BruinTree reads · Preparation

needs reviewconfidence 0.00 · from text

BruinTree could not read this requirement — see UCLA’s wording above.

  • · could not read "one year each of chemistry" (no course number found)
  • · could not read "physics" (no course number found)
  • · could not read "calculus" (no course number found)
  • · no course reference could be read from this requisite

Report a problem

About ENV HLT 252E. We read UCLA’s requisite wording by machine, and it gets things wrong.

What kind of problem

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Requires

Everything that has to come before this course, not just the courses named in the requisite above.

Nothing — this is an entry point.

Unlocks

What this course is a requisite for, and what those courses lead to in turn.

ENV HLT 252E

  • ENV HLT 252FIndustrial Hygiene Measurements Laboratory
    • ENV HLT 252GIndustrial and Environmental Hygiene Assessmentanother path to it
  • ENV HLT 252GIndustrial and Environmental Hygiene Assessment
  • ENV HLT 258Identification and Analysis of Hazardous Wastes

3 courses list this as a requisite. The whole downstream is here — 4 courses over 2 levels. Every course here opens its own tree.