Nightmare on Chemical Street

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Across
  1. 1. a narrow channel dug in the ground, typically used for drainage alongside a road or the edge of a field.
  2. 5. any general business activity; commercial enterprise.
  3. 6. the floor of a building partly or entirely below ground level.
  4. 8. (of a fluid) slowly trickle or seep out of something; flow in a very gradual way.
Down
  1. 1. a site for depositing garbage.
  2. 2. relating to chemistry or the interactions of substances as studied in chemistry.
  3. 3. thick, soft, wet mud or a similar viscous mixture of liquid and solid components, especially the product of an industrial or refining process.
  4. 4. a district, especially one forming a community within a town or city.
  5. 7. an artificial waterway constructed to allow the passage of boats or ships inland or to convey water for irrigation.